Reliable Installations & Expert Service
Looking for hassle-free installations and dependable service? Gas Mark 1 offers top-notch solutions for your home, whether you require a new boiler, central heating system, fireplace, bathroom, kitchen, bedroom or plumbing maintenance work. Our expert team of heating and plumbing engineers is here to assist with all your needs.
As your local one-stop shop for home interiors, Gas Mark 1 delivers exceptional installations and superior customer service. Operating from our Watford showroom, we have proudly served the area for over 20 years, providing high-quality, cost-effective solutions tailored to your requirements.

Recent Case Studies
See how we’ve transformed homes across Hertfordshire with expertly designed kitchens, bathrooms, fireplaces, and bedrooms—each tailored to our customers’ style, needs, and budget.
Bringing a modern, practical kitchen to life with expert hands for a family in Buckinghamshire
Although we are Watford based, with a showroom in the town centre, we work across a large area and completed this full kitchen installation in Buckinghamshire, delivering our usual high-quality, professionally managed project from initial survey through to final completion. The customers were recommended us by their family who we have been working for for many years.
A Tuscan Green Transformation: Crafting a Modern, Stylish Bathroom Retreat
We recently completed a full bathroom renovation bringing together thoughtful design, premium products, and skilled craftsmanship. As with all projects, this began with a detailed site survey and the drafting of quotation by our director Tony, ensuring the clients had a clear understanding of layout options and installation requirements from the outset. The design was then developed by Neil at Herts Bathrooms and Kitchens, who also supplied all goods for the renovation. His layout paired practicality with a bold contemporary aesthetic, centred around standout Tuscan green furniture from Tissino.































