Heating

Since 1993, Gas Mark 1 has been the leading independent installer of boilers and central heating in Watford and beyond, trusted for quality service and excellent value.

Bathrooms

For over 25 years, we’ve built a reputation as one of Hertfordshire’s leading kitchen and bathroom installers, with a Watford showroom showcasing 60+ stunning bathroom suites.

Kitchens

We work with three leading kitchen manufacturers, showcasing over 140 door styles. This allows us to offer a wide range of kitchens to suit every taste, style, and budget.

Fires

We work with several leading fireplace manufacturers, offering a wide range of styles and finishes. This means we can supply and fit fireplaces to suit all homes, tastes, and budgets.

Bedrooms

We work with leading bedroom furniture manufacturers, offering a wide choice of styles and finishes. This allows us to design and fit bedrooms to suit every space, taste, and budget.

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.

Gas Mark 1 team

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.

More Recent Work