Business Details
31 Years
experience
Emergency
services
Your Trusted Plumbing & Heating Experts in Aylesbury
Established in 1995 by Gareth Knell, we have dedicated three decades to delivering exceptional plumbing and heating solutions across Buckinghamshire and surrounding regions. As a Gas Safe and OFTEC registered company, our expertise spans gas, LPG, and oil appliance installations, alongside comprehensive boiler services and bathroom renovations. Our Worcester Bosch Platinum Accreditation underscores our commitment to industry-leading standards, supported by a 12-year manufacturer guarantee on boiler installations. With over 50 years of combined team experience, we maintain a 9.81 Checkatrade rating from 200+ reviews, reflecting our dedication to customer satisfaction.Our 5 million public liability insurance and Gas Safety certifications ensure every project meets rigorous safety and quality benchmarks. From emergency repairs to full system installations, our approach prioritises transparency, reliability, and technical excellence, making us a trusted local partner for domestic and commercial clients alike.
Services
Boiler Repairs
Boiler Servicing
Emergency Plumbing
General Plumbing
Bathroom Renovations
Power Flushing
Landlord Services
Tiling
Gas Safety Certificates
New Boiler Installations
Details
- Year established: 1995
Highlights and features
- 30 years of local plumbing and heating expertise across Bucks, Beds, Herts and Oxon
- Gas Safe and OFTEC registered engineers for all gas, LPG and oil systems
- Worcester Bosch Platinum Accredited Installer with 12-year installation guarantees
- 9.81 Checkatrade rating from 200+ verified customer reviews
- 5 million public liability insurance for complete customer protection
Associations and certifications
- Gas Safe
- OFTEC
- Worcester Bosch Accredited Partner
- Checkatrade
What people say
Excellent quality work
Helpful engineers
Reliable service
Competent and tidy
Went above and beyond
Services
Boiler Repairs
Our Gas Safe engineers provide urgent boiler repair services across Buckinghamshire, with 24/7 emergency availability. We diagnose and fix all boiler types including gas, LPG and oil systems, offering same-day repairs where possible. With 30 years' local experience and 5 million insurance coverage, we ensure safe, reliable solutions for both domestic and commercial clients.
Boiler Servicing
We deliver comprehensive boiler servicing with a 12-point safety and efficiency check, including flue analysis and carbon monoxide testing. Our Gas Safe engineers maintain Worcester Bosch systems with extended guarantees, offering discounted annual reminders. Servicing prevents breakdowns, maintains warranty validity, and ensures optimal energy efficiency for residential and landlord clients across the region.
Bathroom Renovations
Our team offers full bathroom design, supply and installation services with dedicated project management. From small cloakrooms to complete renovations, we handle plumbing, tiling and electrical work. With 25+ years' combined experience and Worcester Bosch accreditation, we deliver tailored solutions for all property types while maintaining strict safety and quality standards.
Power Flushing
We perform central heating power flushing using Kamco equipment to remove sludge and debris, restoring system efficiency. Our engineers use chemical cleansers and inhibitors to prevent future corrosion, balancing radiators post-treatment. This service addresses cold spots, noisy boilers and reduced efficiency, with pricing from 450 for smaller properties up to 800 for larger systems.
Emergency Plumbing
Available 24 hours a day, our emergency service handles burst pipes, leaks and heating failures. Gas Safe engineers respond promptly across Aylesbury and surrounding areas, with same-day call-outs prioritised. We maintain full public liability insurance and use diagnostic tools to resolve issues efficiently while minimising property disruption for homeowners and businesses.
People
Gareth Knell
Director & Founder
Gareth established GK Plumbing in 1995 after apprenticeship training. With Gas Safe qualifications across gas, LPG and oil systems, he oversees operations while maintaining long-term customer relationships developed over 30 years in the industry.
Kelly Knell
Company Secretary
Joining in 2005, Kelly manages operations and digital marketing. Her background in product design complements administrative responsibilities, ensuring smooth coordination between engineers and clients across the company's service areas.
Dan Watson
Technical Sales Manager
With prior experience in plumbing merchant sales, Dan joined in 2020 to enhance customer service. He coordinates bathroom installations and heating projects from design through to completion, leveraging industry supplier knowledge to benefit clients.
Lee Davidson
Plumbing Engineer
Qualified in gas, oil and LPG systems, Lee joined in 2019 and handles complex diagnostics. As our on-call engineer for out-of-hours emergencies, he combines technical expertise with customer-focused problem-solving for residential clients.
Marc Hobley
Heating Engineer
Specialising in gas boiler installations, Marc provides calm, customer-oriented service while mentoring apprentices. His dual focus on technical excellence and team development supports the company's commitment to maintaining high industry standards.
Questions
What areas do you cover for plumbing services?
We serve Aylesbury, High Wycombe, Milton Keynes, St Albans, Oxford, and surrounding areas across Buckinghamshire, Bedfordshire, Hertfordshire and Oxfordshire.
Are your engineers Gas Safe registered?
Yes, all our plumbing and heating engineers are Gas Safe registered (No. 193600) and OFTEC certified for complete safety compliance.
Do boiler installations come with guarantees?
We offer up to a 12-year manufacturer's guarantee on Worcester Bosch boiler installations, with 5 million public liability insurance coverage.
Can you handle emergency plumbing repairs?
Yes, we provide 24/7 emergency plumbing and heating repairs with same-day appointments available across our service areas.
What payment options are available?
We offer 0% finance options on boiler installations, with flexible payment arrangements available for larger projects.
Videos
Reviews (4)
N. V.
Dec 21, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
The team worked hard to every detail in fitting the new boiler. Extremely pleased with the job performed - fast and clean. Thank you all.
Service:Boiler repair
The team worked hard to every detail in fitting the new boiler. Extremely pleased with the job performed - fast and clean. Thank you all.
Service:Boiler repair
Gerry Reed
Dec 14, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Huge thank you for helping us out on same day
Great service and communication - would not hesitate to recommend
Service:Pipe repair
Huge thank you for helping us out on same day
Great service and communication - would not hesitate to recommend
Service:Pipe repair
Paul Jeffrey Legge
Nov 20, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
fast professional service , apart from having heat and hot water i wouldn't have know they had been . No mess and everything moved put back.
Service:Boiler installation
fast professional service , apart from having heat and hot water i wouldn't have know they had been . No mess and everything moved put back.
Service:Boiler installation
J. Ingle
Nov 03, 2021
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We are really pleased with our two new bathrooms! They look wonderful and the help and assistance we received in the design, choice of fittings, planning and installation was invaluable.The work was completed to a high standard and everything was left neat and tidy at the end of each day. Since the bathrooms were completed we have had no snagging issues, due to the high standard of their workmanship. There were no surprises in the invoice either, the final bill matched the quotation, with only a few additions that we added during the fitting. We would have no hesitation in using GK
