Business Details
33 Years
experience
Emergency
services
Your Trusted Heating & Plumbing Experts in Watford
Established in 1993, Gas Mark 1 has built a reputation as a leading provider of domestic heating and plumbing services in Watford and the surrounding areas. As a family-run business, we prioritise quality installations, exceptional value, and professional customer service. Our dedicated teams specialise in boiler and central heating installations, bathroom and kitchen renovations, and fireplace solutions, all supported by Gas Safe Registered engineers. With a 4-storey showroom in Watford, we offer a one-stop shop for design, supply, and installation, working closely with our sister company, Herts Bathrooms and Kitchens. Our in-house apprenticeship scheme ensures a skilled workforce capable of delivering high-quality, tailored solutions for every client.Over 50% of our new work comes from customer recommendations, reflecting our commitment to reliability and excellence. We provide emergency plumbing and heating repairs, power flushes, and landlord gas safety certificates, serving Hertfordshire, Bedfordshire, Buckinghamshire, and North West London. Our engineers are trained to handle all aspects of central heating, plumbing, and appliance maintenance, ensuring safety and efficiency. With free no-obligation site surveys and competitive pricing, we aim to make home improvements seamless and stress-free. Our showroom team offers expert, impartial advice to help customers choose the best solutions for their needs.
Services
Boiler Installation
Central Heating Systems
Fireplace Installations
Kitchen Renovations
Bathroom Installations
Plumbing Repairs
Landlord Gas Certificates
Power Flushes
Underfloor Heating
Solar Water Heating
Details
- Year established: 1993
Highlights and features
- We have over 20 years of experience in domestic heating and plumbing services.
- Our engineers are Gas Safe Registered and trained in-house through an apprenticeship scheme.
- We offer a one-stop shop for design, supply, and installation of bathrooms and kitchens.
- Emergency plumbing and heating repairs are available across Hertfordshire and North West London.
- Free no-obligation site surveys ensure tailored solutions for every customer.
Associations and certifications
- Gas Safe Register
What people say
Fantastic workmanship
Clean and tidy
Professional and efficient
Highly recommend
Seamless process
Services
Boiler Installation
We provide hassle-free boiler installations by Gas Safe Registered engineers. Our team ensures safe, efficient replacements tailored to your home's needs. Customers praise our professionalism, clean workmanship, and seamless process from consultation to completion.
Central Heating Systems
Specialists in underfloor heating, solar hot water, and system upgrades. We diagnose and repair all boiler models and central heating components. Our engineers deliver reliable solutions to improve efficiency and performance across Hertfordshire.
Fireplace Installations
We offer full design, supply, and installation of gas and electric fires. Customers highlight our attention to detail, tidy work, and ability to transform spaces with modern or traditional fireplace solutions.
Bathroom Installations
Our dedicated teams create bespoke bathrooms to suit every style. From walk-in baths to tiling and plumbing, we ensure minimal disruption and high-quality results, often generating new work through customer recommendations.
Kitchen Installations
We deliver dream kitchens with expert fitting of appliances, sinks, and cabinetry. Our showroom offers a wide range of products, and our teams ensure efficient, clean installations that meet customer expectations.
People
Jason
Heating Technician
Jason is a skilled heating technician known for his professionalism and expertise in boiler and central heating installations. Customers praise his clean, efficient work and ability to explain technical details clearly.
Patrick
Showroom Advisor
Patrick provides expert advice in the Watford showroom, helping customers choose the best heating and plumbing solutions. He is noted for his patience, knowledge, and support during the consultation process.
Carl
Engineer
Carl is a hardworking engineer praised for solving complex heating system challenges. His punctuality, efficiency, and dedication to tidying workspaces make him a valued team member.
Ashton
Engineer
Ashton is an efficient and reliable engineer who contributes to seamless installations and repairs. Customers highlight his work ethic and ability to complete tasks to a high standard.
Rhys/Reece
Engineer
Rhys/Reece is a skilled engineer known for professionalism and attention to detail. Their ability to communicate clearly and deliver quality work makes them a trusted part of the team.
Questions
What areas do you serve?
We serve Watford, Rickmansworth, Hemel Hempstead, St Albans, Harrow, and surrounding areas in Hertfordshire, Bedfordshire, Buckinghamshire, and North West London.
Are your engineers Gas Safe Registered?
Yes, all our heating engineers are Gas Safe Registered and trained through our in-house apprenticeship scheme to ensure safety and expertise.
Do you offer emergency plumbing services?
Yes, we provide emergency call-outs for plumbing leaks, burst pipes, boiler breakdowns, and gas leaks during standard working hours.
What services are included in boiler maintenance?
Our boiler maintenance includes diagnostics, repairs, power flushes, and Landlord Gas Safety Certificates to ensure efficiency and compliance.
Can you help with bathroom and kitchen installations?
Yes, we offer full bathroom and kitchen installations, including tiling, plumbing, and appliance fitting, with bespoke designs tailored to your preferences.
Do you provide free surveys?
Yes, we offer free no-obligation site surveys to assess your heating, plumbing, or installation needs and provide tailored recommendations.
