"A first class service, I recommend them all the time."

Customer in Middlesborough

"Very polite, on time and reasonably priced."

Customer in Middlesborough

"5 star service at a very reasonable price."

Customer in Middlesborough

"Have used Simon previously and will use again. Very efficient with all work carried out and to high standard. Very pleased."

Customer in Middlesborough

"Simon is a slat of the earth guy who's very knowledgeable and polite. The work was completed to a very high standard and very reasonably priced. I'll be using Simon for future work too. I would definitely recommend this company to anyone, thank you."

Customer in Middlesborough

"We chose GTS after reading previous reviews. Simon was very knowledgable and helpful. He spent 3 full days and worked non-stop. I would definitely recommend GTS for all your plumbing needs."

Customer in Middlesborough

"Very good work, no problems with quality of work, excellent."

Customer in Middlesborough

"Everything Simon has done, from quoting to finishing the job has been totally professional. Simon arrived after 8am today and worked right through until after 7pm to ensure the job was completed to an excellent standard. The price he quoted was very competetive and that was the price he charged. The first hour of his work involved laying protective floor covering throughout the whole of the work area. His powerflush apparatus was state-of-the-art and he was able to show me the difference it had made to the condition of the coolant. Once the new pump was fitted it all worked perfectly."

Customer in Stockton-on-Tees

"Simon was great - organised, tidy, easy to chat to and worked solidly."

Customer in Stockton-on-Tees

"This is the second time we have used GTS to install a new boiler, as we were so delighted with Simon's expertise, professionalism and friendly manner. On the first occasion, Simon came to our rescue and installed a new boiler in a day.
The old boiler had failed and it was getting colder by the minute!!! Our recent installation in our new home took just over a day and we are delighted with his workmanship once again.
There was no mess and Simon did everything he could to ensure we were back in the warm as soon as possible. We heartily recommend GTS to anyone who needs a boiler fitted All the certification has already arrived within 4 days after completion. Thank you Simon"

Alison and Jeff Boddy

"New boiler Installation : Simon's quote came over £500 cheaper than the lowest quote we had been given for a new boiler and over £1000 cheaper than Br Gas. He is fast , organised , very professional and competent. I would have no hesitation in recommending him for repairs or installation and am extremely satisfied with our new boiler."

Chris Bird

"We had a fault on our boiler that meant we've had intermittent hot water and heating for a while. Simon identified and fixed the problem quickly and efficiently. Very happy with the service and would highly recommend GTS."

Andrea, Middlesbrough

"A very professional and friendly guy. He filled us in on all the details so we knew what to expect. When we got our boiler replaced he arrived exactly on time, took care over our home, and completed the work to the highest standard.
We needed our boiler replacing at short notice and he was very flexible in this regard and we could not have asked for more.
He provides the highest quality boilers and all the necessary paperwork - invoices, receipts, warranty, manuals. A major benefit to us was that he accepts credit cards as well. "

Tristan Burnside

"Very efficient. Very clean no mess made and really good value. Would highly recommend to friends. Used again for boiler service. Fast and efficient, Arrived on time. No mess and no hidden costs. highly recommended"

Ged Swash

"Landlord's gas safety check and bathroom radiator install. I found Simon very efficient and trustworthy, also gave sound advice on other issues. Will definitely be contacting again for future work and have already recommended to others."

Andrew Woods

"New shower fitted, including pipework tidied up. Superb job, top bloke and great price! Would use again without question!"

John Taylor

"I have just had a new boiler installed by Simon from GTS. I found them to be very professional, efficient and reliable. I will have no hesitation in recommending them to family and friends and will not hesitate to use them again."


"Just had my combi-boiler replaced by Simon of GTS. I am very happy with the work carried out and the cost of the job. I am happy to recommend Simon who I would describe as knowledgable, professional, reliable and trustworthy."

Linda Cotton