Boiler Installation, Repairs & Servicing in Stevenage

How Can TNG Help With Boilers in Hertfordshire

Boiler Installation, Repairs & Servicing

TNG Services provides boiler installation, boiler repairs and boiler servicing for homes, landlords and businesses across Hertfordshire. Whether you need a new boiler installed, a breakdown repaired or routine annual servicing, we offer practical and reliable solutions tailored to your heating system.

We work with combi boilers, system boilers and regular boilers, helping customers improve heating performance, restore hot water and upgrade inefficient systems. From emergency boiler repairs to full boiler replacement, our goal is to keep your heating running safely and efficiently.

Boiler Installation & Boiler Replacement

We provide boiler installation and boiler replacement services across Hertfordshire, helping customers upgrade old or inefficient heating systems. Whether you are installing a new combi boiler, system boiler or regular boiler, we can advise on the most suitable option for your property and heating requirements.

A modern boiler can improve energy efficiency, reduce heating costs and provide more reliable hot water. If your existing boiler is frequently breaking down or no longer performing as expected, replacing it may be the most cost-effective long-term solution.

– Combi boiler installation
– System boiler installation
– Regular / heat-only boiler installation
– Boiler replacement & upgrades
– Boiler efficiency improvements
– Smart thermostat installation (Hive, Nest)

Boiler Servicing & Maintenance

 

Regular boiler servicing helps keep your heating system operating safely and efficiently. We provide annual boiler servicing across Hertfordshire, helping identify potential issues early and reduce the risk of unexpected breakdowns.

Routine maintenance can improve boiler performance, extend its lifespan and support safe operation, especially in rental properties or high-use households.

– Annual boiler servicing
– Boiler safety checks
– Performance and efficiency checks
– Preventative maintenance
– Heating system inspections

What Our Clients Say About Us

Testimonials from TNG’s clients about TNG’s service

Mrs Amanda Cress

I have use TNG to finish various hard activities and have discovered them to be quite opportune and true to their dedication to me and my projects and making it a incredible experience.

– Mrs Amanda Cress, Private Property

Mr. Frank Solano

I have used TNG to complete a number of difficult projects and have found them to be very timely and true to their commitment to me and my projects as well as doing an outstanding job.

– Mr. Frank Solano, Solano Architecture Ltd.

Mr. Mark Reuben

Honest, hardworking and totally reliable…

– Mr. Mark Reuben, Mayfair Suites

Happy Clients

Finished Project

Team Members

Nails Used

Tng Services ltd place picture
5.0
Based on 53 reviews
powered by Google
gabriel nepko profile picture
gabriel nepko
3 weeks ago
We booked TNG Services Ltd to repair our Vaillant boiler after it kept showing an F75 fault and losing pressure. Tomas arrived on time, carried out full diagnostics and quickly identified the issue causing the fault.
The repair was completed professionally and at the same time the boiler was fully serviced, including cleaning, safety checks and combustion analysis. Everything was explained clearly and the boiler has been working perfectly since.
Very knowledgeable, reliable and easy to deal with from start to finish. Would definitely recommend TNG Services Ltd for Vaillant boiler repairs and servicing.
Andrew Dawson profile picture
Andrew Dawson
3 weeks ago
We booked TNG Services Ltd after seeing their YouTube video and realising our Quooker tap was overdue for a service.
At the same time, we asked them to replace our integrated dishwasher and investigate an awful smell coming from the kitchen waste whenever we used the washing machine.
Tomas and Gabriel arrived on time, quickly identified the issues and found that the dishwasher had been incorrectly wired by the previous kitchen fitter. He safely rectified the wiring connection and also corrected the kitchen waste pipe installation, which had previously been installed incorrectly and was causing the bad smell.
The Quooker service was completed properly, the new dishwasher was installed perfectly, and everything was fully tested afterwards.
Very knowledgeable, reliable and easy to deal with from start to finish. We would definitely recommend TNG Services Ltd for plumbing, heating and electrical works.
Kamila Dawson profile picture
Kamila Dawson
3 weeks ago
I am delighted with the impeccable service provided by TNG Services Ltd for the installation of my Quooker 3-in-1 tap. From the outset, their team displayed exceptional professionalism and skill, ensuring a seamless installation process. The Quooker tap now functions flawlessly, offering instant boiling water, along with hot and cold options. I wholeheartedly recommend their services for anyone seeking top-notch Quooker 3-in-1 tap installation. Thank you, TNG Services Ltd, for a job well done!

Kami Dawson
Pawel Starek profile picture
Pawel Starek
4 weeks ago
⭐⭐⭐⭐⭐
Called TNG Services Ltd out to repair a leaking solvent weld waste pipe at our s and s Branch in Mill Hill. The pipe had failed in two sections and was causing ongoing leaking issues.
Tomas arrived promptly, identified the problem quickly and carried out the repairs professionally. Everything was tested properly afterwards and the area was left clean and tidy.
Really happy with the service — reliable, knowledgeable and easy to deal with from start to finish. Would definitely recommend TNG Services Ltd for plumbing repairs and fault finding.
Kiran Solanki profile picture
Kiran Solanki
1 month ago
⭐⭐⭐⭐⭐
I actually came across TNG Services Ltd after watching one of their YouTube videos about gas hob flames, and it immediately made me realise something wasn’t right with mine. The flame had that yellow/orange colour they mentioned, which I hadn’t thought much of before.
I decided to get it checked, and I’m glad I did. Tomas came out promptly, inspected the hob, and explained clearly what was causing the issue and why it could be unsafe if left. He sorted it on the spot and made sure everything was burning correctly again.
Really knowledgeable and honest service. It’s reassuring to find someone who not only fixes the problem but also educates you along the way. Highly recommend TNG Services Ltd if you’ve noticed anything unusual with your gas appliances.
Bhavik profile picture
Bhavik
4 months ago
Thomas is a great guy. Good communication & professional. He helped us identify missing bonding for the gas meter. Would recommend.
Michelle Kangisser profile picture
Michelle Kangisser
7 months ago
I contacted TNG Service Ltd to investigate a loss of water pressure and issues with my underfloor heating. They quickly found and rectified the problem with the heating controls and replaced the faulty manifold. The team was professional, knowledgeable, and efficient throughout. Everything is now working perfectly — highly recommended for anyone needing reliable heating and plumbing services!
Donna Williams profile picture
Donna Williams
7 months ago
I recently had some repairs on my boiler and a service to make sure it was safe and ready for winter.
Tomas has been great from start to finish. He came round to see the boiler and explained what needed to be done. Work has been done to a high standard and a very reasonable price. I definitely won't be looking anywhere else in the future when I need work done. Thank you
Chris Oakes profile picture
Chris Oakes
7 months ago
Had a new boiler installed in Stevenage by TNG Service Ltd and couldn't be happier with the service provided! The team was professional, efficient and kept everything tidy throughout the installation. The new boiler is brilliant and fitted to a high standard. They took the time to explain how everything works and had amazing customer service. Great workmanship and would highly,highly recommend.
Stompedme profile picture
Stompedme
8 months ago
Tng Service Ltd carried out my boiler service in Radlett and found the gas valve was leaking. They replaced it straight away and got everything working safely. Excellent, reliable service, I highly recommend.

Types of Boilers We Work With
We install, service and repair a wide range of boiler types commonly used in UK homes and
commercial properties.

– Combi boilers
– System boilers
– Regular (heat-only) boilers
– Gas boilers
– High-efficiency modern boilers

Why Choose TNG Services for Boiler Work?

Choosing the right company for boiler installation, repairs or servicing is important for safety, reliability and long-term performance. TNG Services aims to provide a professional and dependable service across all types of boiler work.

– Boiler installation, repair and servicing in one place
– Support for homeowners, landlords and businesses
– Emergency boiler repair availability
– Experience with different boiler systems
– Clear advice and practical solutions
– Local service across Hertfordshire and surrounding areas

Need Boiler Installation, Repair or Servicing?

Contact TNG Services today for boiler installation, boiler repairs or annual servicing. We provide free estimates and practical advice based on your heating system and property.

Areas We Cover

Contact Us Today

For all your plumbing and heating needs in Hertfordshire, trust TNG Services to provide reliable, efficient, and high-quality solutions. Contact us today to schedule a consultation or to learn more about our services.

  • Abbots Langley
  • Berkhamsted
  • Borehamwood
  • Dunstable
  • Harpenden
  • Hatfield

Let's Work Together!

TNG-Services offers free estimates with no obligation to use our services.
Contact Us