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New Boiler Installation

Whether you’re considering purchasing a new boiler, or have recently moved into a new property with an old standard boiler, it is important to consider how much heating your household could actually require.

We really love our shiny new boiler, it is a great upgrade for anybody and would highly recommend. It keeps your house heated, provides reliable hot water and shortens your energy bills.

First thing first, we’ll meet with you to discuss what you need. We’ll discuss the choices, recommend what we feel are the best options and provide you with a clear quotation free from any hidden extras.

We start with a home visit. We consider how big your home might be, the number of radiators you need to plan to have or already do have and how much hot water you use every day to help you decide on the size and type of boiler that’s right for your house. In this way, the answer is tailored to your home.

We want to provide you with dependable heating, lots of hot water, and higher efficiency so that you don’t have to pay more than absolutely necessary.

Selecting the Appropriate Boiler

And we typically install three basic types of boilers.

Combi boilers are great for small spaces. They’re also compact, requiring no separate hot water cylinder or cold or hot storage tanks and firing from one unit. They’re great for smaller homes.

System boilers are recommended for larger homes, although the heating and hot water system usually rely on an additional storage cylinder. They’re great if you have multiple bathrooms or large hot water demands. System boilers are ideal if you live in a home with a high demand for hot water or more than one bathroom. It may be useful to maintain this configuration if your existing system is working well.

When we evaluate your property, we take a broader view. We factor in the dimensions of your home, insulation, number and size of radiators and how pipework is configured. The greater the efficiency percentage, the more of what you pay for in fuel becomes heat to warm your home. Standard boilers generally range from 80 to 85 percent efficiency, and high-efficiency boilers have projects that can break the 90 percent mark. Over time, that differential can make a real difference in your energy bills.

Installation Day: What to Expect

On the day of installation, we first disconnect and remove your old boiler in a safe manner compliant with Gas Safe rules.

Next, we prepare the area for the new boiler that could involve tweaking pipes and ensuring the spot is safe. When we have the new unit in place and connected, test the system to confirm it operates as it shouldefficiently. We’ll also go over how to operate the controls and thermostat so that you can feel comfortable with your new system.

New boilers cost more than replacement boilers and all the factors that affect a new boiler cost (no pun intended) apply to replacement boilers as well, such as the model you select, its make, and any modernisation work (which will be discussed shortly).

Upon completion of the survey, you’ll get a full list of costs will all costs covered.

Maintaining Your Boiler

Servicing on time and regularly ensures your new boiler continues to operate safely and effectively. An annual service makes sure everything is  in working order or sees that there may be a problem on the horizon.

Regularly cleaning your boiler, addressing problems efficiently and flushing out the system every now and then can help it live longer. With proper maintenance, a good boiler should last 15 to 20 years.

About The DC Group

New Boiler Installation

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Happy customers...

The DC Group UK place picture
4.9
Based on 153 reviews
Geraldine Clark profile picture
Geraldine Clark
2 days ago
Robert Bruce profile picture
Robert Bruce
2 days ago
Neeraj Nayyar profile picture
Neeraj Nayyar
4 days ago
Happy with the service!
Michael Kwasnik profile picture
Michael Kwasnik
2 weeks ago
Excellent service from start to the end. Janos very friendly engineer!
boxing predict profile picture
boxing predict
2 weeks ago
The engineer Dee was on time and polite for an annual boiler service. Company texted me the day before and just prior to his arrival. Great customer service.
David Farnworth profile picture
David Farnworth
1 month ago
I was pleased with the service. However I was disappointed the engineer didn’t offer to remove his footwear or cover them.
alan cozens profile picture
alan cozens
1 month ago
Always a pleasure to see Divyesh, he's always punctual, does an excellent job of servicing our boiler and always leaves everything clean and tidy when he's finished, couldn't be more pleased.
James Heath profile picture
James Heath
1 month ago
Thanks Janos - boiler fixed - all good
Lorraine O'Rourke profile picture
Lorraine O'Rourke
2 months ago
I would like to express my thanks and appreciation to Troy Augustin, the plumber who attended our home on 3 September to fix a toilet problem. From the outset, Troy provided excellent customer service. He kindly called ahead to let me know he was on his way, which was extremely helpful and much appreciated. Throughout the visit, Troy was professional, courteous and clearly took great pride in his work. He kept me informed every step of the way, explaining what he was doing and ensuring I understood the progress being made. His attention to detail, dedication and commitment to doing the job properly were evident throughout. Troy was also very friendly and approachable, making what could have been a stressful situation much easier. It was clear that he genuinely cares about both his work and his customers. My husband and I are very grateful for the excellent service Troy provided, and we wanted to ensure his outstanding work and professionalism were recognised. Please pass on our thanks and appreciation to him.
Emer Noonan profile picture
Emer Noonan
2 months ago
Janos was very helpful, got everything sorted very efficiently
Laura Neocleous profile picture
Laura Neocleous
4 months ago
I had Janos Wimmer do an annual boiler service for me this morning and he did a fantastic job. My heating was actually broken, and I was expecting to possibly have to rebook my service check for another day, as well as arranging to fix my heating beforehand too. He was brilliant and actually managed to fix my heating as well as carry out his checks! He was a lovely gentleman, very polite and cracked on with the work he needed to do. Very grateful he was able to fix my heating, especially as I was his first job of the day and he ended up staying a bit longer than estimated! Absolutely no complaints from my end, wonderful service. Thank you!
Anca Tudor profile picture
Anca Tudor
5 months ago
Vural from DC Group UK has been amazing. He's completed a boiler service at short notice with high regard to customer service, being very tidy and helping putting things back in the store room. Thank you very much, Vural.
Chidozie Ejiaku profile picture
Chidozie Ejiaku
5 months ago
Engineer Vural Aktas from DC group came today to service my Valliant Boiler. Very experienced Engineer and highly skilled. Paid attention to every detail. He is the only Engineer that has been to my residence to carry out the yearly service and spent over 20mins checking the Boiler and inspecting the whole System. I highly recommend him. He is polite, friendly, knowledgeable and professional. Thank you so much Vural.
tim bisgrove profile picture
tim bisgrove
5 months ago
I can highly recommend Vural from Dc group. He came to perform our yearly boiler service and found a fault. In a very professional manner he explained his findings and offered a remedy of which we were happy with. A very nice, professional service from a well run company. Refreshing.
Jamie Thunder profile picture
Jamie Thunder
5 months ago
Vural from DC Group did a very good job on our annual boiler service. He was on time, very polite and thorough, and gave us clear information.
Mike Watts profile picture
Mike Watts
5 months ago
Routine service of our boiler today and a very thorough job by Vural! Very careful inspection and testing under max load and gas delivery. Vural deserve to go Viral!
Janos came ahead of time, being more punctual than ever and provided a great service. He showed me the different parts of the boiler that hadn't been cleaned on previous visits and the part that had a slight leak that required attention. He was very respectful, wearing shoe covers without the need to ask that shows his respect and appreciation of being clean in the customers house.
Dan & Clau profile picture
Dan & Clau
6 months ago
Fantastic service again from the DC Group! Reliable servicing and boiler fixes/replacement experiences, and they are always punctual. Shout out to Janos who is a top professional, a great communicator and a pleasure to see every time he visits.
Jasbir kaur profile picture
Jasbir kaur
7 months ago
I called DC group to discuss relocation and installation of a new boiler after being let down several times by a well-known company. I was given a date and time that was suitable for me, on the day Divyesh and two other guys arrived promptly. They took their time to complete all the work (which I know was complicated and time consuming) and made sure we were satisfied with the completed work. They are reliable, honest and operate with integrity. What I loved was Divyesh, Troy and Varul were all so polite, explained everything they were doing and took on board anything we said. Divyesh always took the time to answer any questions I had and explain the new boiler; they provided me with all the options available- from repair to replacement. As a woman, it can be difficult to find someone you can trust, so I'm very pleased to have had such an excellent service. I would happily recommend them to anyone who is looking for a great company that arrive on time and work diligently to get the job completed.
Mandana Merali profile picture
Mandana Merali
8 months ago
Highly recommend the DC Group. They have been extremely helpful with all the problems we were left with after our builders employed a friend to carry out the plumbing. Four years on we still call on them for anything plumbing. Honest, excellent, competent and approachable
Sonesh Sakaria profile picture
Sonesh Sakaria
8 months ago
I cannot recommend The DC Group UK highly enough. I dealt with Divyesh Chotai, who provided truly exceptional care throughout the entire process. He didn’t just treat me like another job; he took his time to actually solve the problem and offered extra support and advice that I wouldn't have found elsewhere. What stood out most was his willingness to help with a temporary fix to keep things running while we navigated the insurance side of things. It’s rare to find that level of professional mentality and a genuine desire to help the customer. If you want an expert who actually cares, look no further
Daniel Nivern profile picture
Daniel Nivern
9 months ago
Fantastic company and Divyesh is a lovely guy. Tried to help out on the phone and then came round the same day. Did what needed to be done, didn't overcharge, was very honest and left with some tips for the future. Couldn't recommend more. Thanks for your help.
Rich B profile picture
Rich B
9 months ago
Like others have stated, you rarely come across professionals who actually want to help and know what they are looking for - that’s the key We had an intermittent leak from our boiler and the gentleman from the DC group spotted it immediately. I can’t rate them highly enough for their service, politeness and professionalism
Joro Mimi profile picture
Joro Mimi
10 months ago
Horrible experience with this company. They were tasked to do my annual CP12 certificate where they wrongly tagged the CO alarm as fail and marked the expiry date of the alarm as the date of their visit (26/11/2025). As soon as I saw it, I double checked and 1. the alarm is working perfectly fine and 2. Expiry date on it is 01/2035. I contacted them and asked to either evidence what they put on the certificate or correct it. I sent a chaser a week later- they ignored both emails. You've been warned - once something goes wrong you are on your own, this company takes no accountability or responsibility for their work.
Debbie Duffin profile picture
Debbie Duffin
11 months ago
I cannot speak highly enough about this company My boiler wasn’t working thus had no heating or hot water for 2 days I initially contacted British Gas who came & told me I need a new boiler I then contacted The DC group who came today who not only fixed the problem they went above & beyond to do so . Their initial visit was 2pm they left saying they would attempt to acquire the part needed that afternoon if possible return the same day as I said I was working the following day & they did indeed returning after the normal working day at 18.30 & fixed my boiler. They are professional friendly & would most definitely recommend anyone reading this to use this company I just wish I had found them years ago
E w profile picture
E w
11 months ago
Took me a week to get an appointment, engineer came completed repair work, waterflo and boiler service but did not give me a Service Maintenance record or job report until requested, not madatory I know but it is best practice to give/send one following appointment. 1 month later, same issues and boiler not working, took me 3 days of phone calls to secure follow up appointment, engineer was able to fit me in the week after but I was told there would need to be further cleaning and costs (I have since been made aware that it is usual to do a FULL cleaning as part of basic boiler servicing). I had to chase for a follow up appointment (again another week to wait - and still no heating). In my opinion costs should be clearly outlined if not before then upon diagnosis and a more transparent process should be offered. Some companies charge separately for anything beyond a basic service as these guys do so before booking them make sure you know exactly what your money is paying for. I appreciate it’s a busy time of year but when your family and house is cold you start to lose patience. Engineer and office manager are nice people so I am giving a fair review but my thoughts are that they are overworked and understaffed for probably their busiest time of year. I'll take my business elsewhere.
Mel Mowatt profile picture
Mel Mowatt
1 year ago
I rarely write reviews, but I felt compelled to share my experience with The DC Group after they fixed my boiler today. With so many rogue boiler repair companies out there, The DC Group truly stands out as a rare diamond in the industry. From the moment I called, their professionalism was clear. The engineer arrived on time, was polite, and took the time to thoroughly investigate the issue with my boiler. What really impressed me was how patiently he explained what was actually wrong, showing me the parts and laying out the situation in terms I could understand—no confusing jargon or pressure to pay for unnecessary repairs. He also discussed different cost-effective solutions with me, making sure I knew my options and what would work best for my budget. I never felt rushed or like I was being upsold and after about 15 minutes my boiler was up and running. It’s such a relief to find a company that cares about doing things right and genuinely wants to help their customers. I am so grateful for their honesty, expertise, and care. I highly recommend The DC Group to anyone looking for a reliable, professional boiler repair company. Thank you again!
Last called DC Group a year ago when I suddenly found myself without hot water. They came immediately. This time I couldn't bleed radiators but also needed boiler service. They did service and found i was leaking CO. Fixed everything, worked quickly and well Very satisfied with this reliable company
Beejal Vaghela profile picture
Beejal Vaghela
1 year ago
I have to say this company and the guy who came out are absolutely brilliant! Highly recommend them. Came out on a very busy day for them even at 20:30 at night. Resolved my issue.
Luke Plausin profile picture
Luke Plausin
1 year ago
I had a boiler relocation and upgrade job carried out by DC. They were great - they sent out their top engineer to look at the job beforehand so we got all the details right from the start. The job was supposed to take 2 days - there were some complications but the team stayed on late to get it done within the timeframe that they said. All work has been done to a high standard and I'm really happy with the results.
Paul Wallis profile picture
Paul Wallis
1 year ago
Service, on both occasions, was both prompt and professional. The engineer, again on both occasions, was really friendly and helpful.
Vural Aktas profile picture
Vural Aktas
1 year ago
Brilliant service as usual. Repaired my boiler. Very good price compared to the market. Same day service.
Liz Perez profile picture
Liz Perez
1 year ago
What amazing service from Dee and Troy, beyond helpful and kind, experts and extremely professional. A real credit to The DC Group, if only all engineers were like Dee and Troy, can highly recommend this company and their representatives.
Nabil YassIne profile picture
Nabil YassIne
1 year ago
Rupinder & Dee were here on time and fixed the boiler. I had no hot water for couple of days and thanks to these lovely Gents are is great. Thanks a lot for everything. God bless you. A++++ service.
Bee Bart profile picture
Bee Bart
1 year ago
Arrived same day as booking. Identified the root cause of the issue and replaced the faulty part, and also provided advice on what to do if the fault re-occurred. Very Helpful and knowledgeable guy!!
Sachin Dosani profile picture
Sachin Dosani
1 year ago
More than happy to recommend Divyesh. Very transparent and trustworthy. He fixed an issue with our boiler and will definitely be my first call for any gas related issues going forward.
Brijesh Popat profile picture
Brijesh Popat
2 years ago
100% use this company - no regrets, very professional and very thorough with the work. Divyesh completed a powerflush but went above and beyond to resolve the boiler issues. Look forward to working with them in the near future again. Highly recommended.
Louise claire profile picture
Louise claire
2 years ago
Amazing service!!⭐️⭐️⭐️⭐️⭐️ Went Above and beyond to fix my boiler , very professional and extremely experienced, made sure to check everything thoroughly & also made sure everything was working perfectly with precision in their work , I highly recommend them for any boiler issues , Honestly the best company to resolve any problem or emergency , Thank you again I really appreciate all your hard work ⭐️⭐️⭐️⭐️⭐️
Alan Cripps profile picture
Alan Cripps
2 years ago
Arrived within the alloted timescale , kept me advised of the actual eta. Very helpful, carried out the yearly service with efficiency, previously discussing the boiler condition. Seamless process, very happy with DC.
Krunal Patel profile picture
Krunal Patel
2 years ago
Highly recommend - the best communication and updates throughout. Also stuck to any agreed appointments and very honest from the first point. When our heating went down - came over on Christmas eve!! And very late into the evening on a separate occasion. The boiler replacement day came with a team of 5 and very professional throughout and finish looks great. Will continue to use going forward and at out properties. Great service and job!
Martin Bates profile picture
Martin Bates
2 years ago
Great service. Thorough, professional and friendly.
Kc Cico profile picture
Kc Cico
2 years ago
"Once again, Dee & Tina from The DC Group delivered an exceptional service! They arrived on time, worked efficiently, and resolved the issue with professionalism. It's always a relief to rely on such a trustworthy and reliable team. Highly recommend!"
Louise Isaac profile picture
Louise Isaac
2 years ago
Very prompt and clean repair. Would highly recommend.
Janet Whyte profile picture
Janet Whyte
2 years ago
Problem resolved quickly by two perfect gentlemen. Thanks guys. Much appreciated.
Tim Price profile picture
Tim Price
2 years ago
Perfect no fuss fix, spotted and resolved problems previous engineers had missed or ignored - highly recommend
The H profile picture
The H
2 years ago
Great experience boys were in fast and done a great job, honest pricing. Would highly recommend and use them again
Aman Pourkarimi profile picture
Aman Pourkarimi
2 years ago
Very knowledgable and supportive
Susan Collison profile picture
Susan Collison
2 years ago
Excellent service by the engineer, very professional and sorted out a my central heating system efficiently. Very grateful to him as it had been an ongoing problem. He was kind enough to explain everything to me so that I understood the issues.
Shelo Hoque profile picture
Shelo Hoque
2 years ago
Great service from start to finish. Great booking service, particularly liked the message of the 10 minute arrival window half hour before, and the clear notifications of the appointments. Divyesh was great, informative, knowledgeable and skilled and carried out the power flush with extra bits to get the heating to its optimum. Would defo use again and recommend highly.
Kelsey Wiebe profile picture
Kelsey Wiebe
2 years ago
I had a fantastic experience! The team truly cares about their customers and was incredibly thorough with their testing. I especially appreciated Dee’s reassuring demeanor and the time he took to explain everything clearly and in a way I could easily understand. Highly recommend!
John Berelowitz profile picture
John Berelowitz
2 years ago
Great service - competent and reliable - a please to deal with.
Can’t recommend enough, so friendly and sorted my boiler issue in less than 10 minutes. Will 100% use again and recommend to friends/family. Thanks again!
Richard Bate profile picture
Richard Bate
2 years ago
Excellent annual service again. Highly. Recommended for our ATAG. Boiler
Robbie Weber profile picture
Robbie Weber
2 years ago
The DC Group recently carried out a long overdue boiler flush at my property. I could not be happier with the service provided. Divyesh and his apprentice were both polite and professional. Divyesh also took the time to explain and show what they were doing as well as how best to look after the system thereafter. Before leaving, Divyesh made sure that all was in order before he left as well as an assurance of aftercare if needed. I would highly recommend.
The DC Group are great! Easy to book a boiler service, punctual, alerted us when they were entire to my property, polite and respectful, honest and efficient with their work. Will always recommend them.
Daniel O Riordan profile picture
Daniel O Riordan
2 years ago
Scheduled two separate boiler services and they never turned up. Avoid at all costs.
Rav Singh profile picture
Rav Singh
2 years ago
Professional Service, with clear communications. Always easy to deal with THE DC Group for our boiler, gas and property solutions.
Tee V profile picture
Tee V
2 years ago
Dee was brilliant right from the start, communicated efficiently and was very helpful. Work all done on time as promised, a trustworthy and lovely guy. Company is run very efficiently also, Tina at the office was great and really helpful also. Defo recommend them for all your plumbing needs
Alex Weeks profile picture
Alex Weeks
2 years ago
Absolutely fantastic service. Dee takes genuine pride in his work, is very willing to explain all that he's doing, and the team is super efficient. Needed a boiler replacement and Dee came round with 2 others, each of them got to work on their respective tasks (boiler replace, power flush, plus towel rail replacement) and it was all done quickly & efficiently. Highly recommend, would absolutely use Dc Group for any other plumbing needs I have
Nishma Shah profile picture
Nishma Shah
2 years ago
Divyesh was fantastic in completing my megaflow service and he also returned later that day to resolve an issue I had with a stuck shower mixer tap. He is very reliable committed and professional. I would highly recommend him