Gas Mark 1

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Gas Mark 1 Providing first class installations and top quality customer service. We also have a sister company Herts Bathrooms and Kitchens.

Hertfordshire's leading Gas Showroom and with fireplaces, gas and electric fires, cookers and all gas appliances. We are the premier installer of boilers and central heating in the area with our own highly skilled engineers and dedicated back office support.

🌿 Celebrating the first-ever National Heat Pump Week 12-16 October 2026!As heat pumps take centre stage this week, we’re...
14/10/2026

🌿 Celebrating the first-ever National Heat Pump Week 12-16 October 2026!

As heat pumps take centre stage this week, we’re showcasing a .uk heat pump installation completed by our engineers Tom and Rhys.

As registered .uk installers, the team at Gas Mark 1 can help homeowners explore modern, energy-efficient heating solutions tailored to their property and heating requirements.

🏡 Considering a heat pump for your home? We provide free of charge heating installation advice for customers across Watford, Hertfordshire and the surrounding areas.

📞 Call us on 01923 231780
🌐 Visit www.gasmark1.com
📧Email [email protected]

🛁Check out this elegant supply only bathroom. 🚿If you have your own plans for engineers and contractors that's not a pro...
12/10/2026

🛁Check out this elegant supply only bathroom. 🚿

If you have your own plans for engineers and contractors that's not a problem, the sales team in Herts Bathrooms can create a quotation for supply of goods only, no labour included - leaving you the flexibility to organise your own installation.

If you're interested in hearing more about the ranges which we have on display in our showroom or want to book in a visit please call 01923 237999 and ask for Stewart, Patrick or Neil️🧔🏻‍♂️👨🏻‍🦰👨🏻‍🦳

And just like that we have reached the end of ! ⭐Our fantastic colleagues (a few of them pictured here) help deliver gr...
09/10/2026

And just like that we have reached the end of ! ⭐

Our fantastic colleagues (a few of them pictured here) help deliver great customer service every day from our office and showroom. Answering the phones, booking in jobs, seeing customers for design appointments, ordering goods behind the scenes, supporting engineers through on site projects and so much more.

Always on-hand to support, we want to send a huge thank you to our customer service team for your commitment and hard work in going above and beyond for all our engineers and customers!

🏮🌟More postcards from Hong Kong with Vaillant UK 🌟🏮Tony is having a great time on the installer trip with Vaillant UK Me...
09/10/2026

🏮🌟More postcards from Hong Kong with Vaillant UK 🌟🏮

Tony is having a great time on the installer trip with Vaillant UK Meeting with reps and exploring the vibrant city, enjoying traditional hospitality. Tony even managed to find a Tapas Bar in the city, which given his Dad was Spanish just had to be tried!

🏮 Postcards from Hong Kong with Vaillant UK and Glow-worm Trade 🐎Our director Tony has joined team Vaillant this week on...
08/10/2026

🏮 Postcards from Hong Kong with Vaillant UK and Glow-worm Trade 🐎

Our director Tony has joined team Vaillant this week on an installer trip to wonderful HK. Always thinking about plumbing and heating he’s noticed some flue installations which aren’t quite up to GM1 standards!

Follow along for more updates on the trip!

🔥⚒️ For our meet the team post this week we’ve got 4 key installation engineers- Charlie, Shay, Kyle and Sean. While eac...
05/10/2026

🔥⚒️ For our meet the team post this week we’ve got 4 key installation engineers- Charlie, Shay, Kyle and Sean.

While each have their own area of experience, they all have developed their careers with us through the apprenticeship scheme to fully qualified plumbing and gas safe engineers.

🌟Shay joined us in 2018 and works across large new build projects completing plumbing and heating systems, managing multiple bathroom installations while on site.
🌟 Sean has been with us for over 5 years and enjoys bathrooms and heating work, having gained valuable experience from senior engineer Jason.
🌟Charlie worked alongside Tom on larger projects as an apprentice, learning about about underfloor heating, heat pumps, boilers and first and second fix bathroom projects.
🌟 Kyle joined in 2018 straight from school and brings a broad range of skills to the team across plumbing and heating.

They joined as promising engineers at the beginning of their working lives and have now developed skills, becoming hugely conscientious team members committed to achieving a high level customer service.

🙌 Thanks to these 4 lads- we are proud to have you on our team 👏

Meet Gavin Daly, (on the far left) our project manager for bathrooms, kitchens and bedrooms. Gav has a unique understand...
30/09/2026

Meet Gavin Daly, (on the far left) our project manager for bathrooms, kitchens and bedrooms. Gav has a unique understanding of our business having worked across several different areas. Joining Herts in 2001 working in warehouse, as delivery driver then moving into the showroom where is gained experience with products and projects before moving into the GM1 office in 2021.
As project manager Gavin is the link between customers, engineers, showroom team and contractors. For our partners having someone like Gavin overseeing everything provides an important point of contact and helps ensure everyone is working towards the same goal: Delivering a high quality finished project and a great customer experience.

Gavin also manages our team of 11 apprentices, from recruitment through their courses.

Thank you Gavin for all you do 🌟

Address

15-21 Market Street
Watford
WD180PA

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm

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