Huge thanks to Ryan, who fitted our new boiler! From start to finish, the service was professional, efficient, and stress-free. Everything was explained clearly, the work was done to a very high stan... See more
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
See what reviewers are saying
This year, Ryan has been really helpful in fixing a long standing pipe issue and the radiator is now working. He also came out today to repair a boiler issue : completely separate to the other work.... See more
Been using Ryan & Gary Mills for some years now in our own home & family members too. Always found them reliable, on time & honest with their assessments. Just had annual boiler & gas fire service don... See more
What stood out most was the plumber called Ryan, his attention to detail and genuine commitment to solving the problem correctly, rather than offering a quick fix. It’s rare to find such honesty and... See more
Company details
Information provided by various external sources
Family business established in 1983. Based in Loanhead, Midlothian but working all the Lothian regions & Edinburgh. Vaillant boiler specialists
Contact info
High Street 11, EH20, Loanhead, United Kingdom
- www.gdmills.com
People also looked at
Highly recommended, great service
GD Mills did a great job replacing our old heating system with gas central heating. The work was carried out quickly, no mess left and everything working perfectly. Great competitive price too. Highly recommended.
No difficulty in giving five stars to…
No difficulty in giving five stars to Gary and Ryan who installed a downstairs WC for us. Great service and value for money.
Best-value boiler replacement
My old boiler died, and I asked around for a recommended plumber. After contacting seven companies, G.D. Mills were the one to choose: prompt responses; friendly and efficient; straightforward and reliable. They quoted lower for a higher spec of Vaillant ecoTEC boiler than another quote I obtained.
Ryan and Gary did the full boiler replacement in half a day to an excellent standard. On the same day, they registered the 10-year guarantee and e-mailed me the necessary certificates.
If you want great service and good value for money, give these guys a call. They're as professional as you'll find.
Excellent Service. Top Class ⭐️
I would highly recommend using Gary. Excellent service received and very professional and friendly.
Emailed Wednesday morning as my old…
Emailed Wednesday morning as my old Mums toilet was leaking, plumber can out Wednesday afternoon for a look then returned Thursday to carry out and complete the work.
Thank you so much for an excellent quick service at a very reasonable price.
5* without a doubt
Best Plumber in Edinburgh
Best Plumber in Edinburgh !
Ryan and Gary Mills look after and maintain my rented properties in Edinburgh dealing with small leaks to new boilers plus Landlord's Gas Safety Certificates. They deal directly with my tenants once I inform them of any problems and they will also give me advice on any new legislation.
They also email annual reminders for servicing which is perfect as it makes my life easier .
Great Service.
Five years and counting ...
Five years ago Vaillant arranged that G D Mills would replace my old boiler with a new Vaillant one; by using them as a trusted installer I ended up with a longer than usual warranty on the new boiler.
I was impressed by their care, workmanship - immaculate pipework for example (as can be seen in pictures on their Facebook pages) - punctuality, tidy thoughtful and cheerful work...
Apart from the boiler install I also had the firm reroute some other pipes ... also done with care etc.
Since then, apart from the first service which was done "free" by Vaillant, GD Mills have serviced the boiler for me. I am pleased to have found such a high quality local firm and would have no hesitation in recommending them to anyone else.
Good workmanship
G.D. Mills have done 2 jobs for me recently. On both occasions I was highly impressed. Punctuality, politeness, tidiness and workmanship all top class. Very reasonably priced, I would have no hesitation in recommending them.
Vaillant Excellence
Gary and Ryan have installed and maintained my Vaillant boiler for several years now. They provide a very professional service with a prompt response and excellent quality of work.
Excellent all round
Excellent all round. Arrived quickly to give thorough and accurate quote. Completed the work exactly to the agreed schedule. Worked very hard and left the place spotless. Highly recommended.
New Boiler
Gary and Ryan were excellent from start to finish replacing our boiler. Punctual, polite, tidy and helpful. Cant really ask for much more. Would not hesitate to recommend.
New boiler
Gary and Ryan Mills were punctual, hard working and installed our new boiler to a very high standard. They made no mess and took great care to ensure our home was treated with respect. I highly recommend them and have no hesitation in saying that we would call on them again should the need arise.
Great service!
I’ve used this company several times and service has always been first class. This week they were able to come out at short notice to sort out a boiler problem. Would highly recommend.
G.D.Mills Professional & Fair Priced
G.D.Mills installed my boiler a year ago. At that time I was so impressed I recommended them to friends and family who have used then and been delighted with the boiler system and the professionalism of their service. One year on the company having ent me a reminder about the servicing of said boiler have now carried out the service with the same professionalism and friendliness and at a very reasonable price.
Excellent service from GD Mills
Have used this company for 6years now and they have never let me down. Gary and Ryan are knowledgeable, friendly and honest. Always turn up on time and answer phone calls. Would highly recommend this company to anyone.
Excellent service
Very prompt and friendly service! I appreciated the explanations and helpful tips.
Most reliable plumbing specialists around
Gary and Ryan are the most reliable plumbing specialists around.
I recently required a new boiler to be fitted having recently moved in to a new property. Gary and Ryan arrived exactly when agreed, were focussed on the work, and explained in clear terms all of the actions they took, answering any questions I had. Their aftercare is also second to none and they checked in to ensure everything was working as planned - which it was. I am extremely pleased and grateful to have found a company I can rely on and trust.
I would recommend them with absolutely no hesitation.
Had a last minute heating fault just…
Had a last minute heating fault just before exchanging the keys to sell my property.
GD Mills saved the day.
Cannot fault their work and prices, worth every penny. Lifesavers
Highly recommend using this company.
Thanks Again
Really happy with the service from Gary…
Really happy with the service from Gary and Ryan - professional, efficient, fair value for money. Boiler serviced and a kitchen tap replacement.
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.





