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Trusted Boiler Services in Wigan
A G Fraser is a trusted provider of gas installation and repair services, serving Wigan and Greater Manchester. Founded by Andy Fraser and Paul Kilpatrick, our team combines over 20 years of engineering expertise with a commitment to customer-centric service. We specialise in boiler installations, annual servicing, gas safety certifications, and central heating upgrades, prioritising safety, efficiency, and reliability.

Our Gas Safe registered engineers deliver fixed-price quotes, price match guarantees, and warranties up to 10 years, ensuring transparency and value. With a heritage rooted in family-trained craftsmanship and modern customer service excellence, we focus on long-term relationships built on trust and technical proficiency.
Services
Boiler Installation Boiler Repair Annual Service Gas Safety Certificate Central Heating Upgrade Powerflush Thermostat Installation Radiator Replacement Magnetic Filter CombiSmart Valve
Highlights and features
  • Gas Safe registered engineers ensure safety and compliance
  • Price match guarantee on new boiler installations
  • Warranties up to 10 years on boiler installations
  • No callout charges for emergency repairs
  • Experienced team with 20+ years in gas engineering
Associations and certifications
  • Gas Safe Register
What people say
Great communication Very professional Highly recommend Prompt response Excellent workmanship
Services
Boiler Installation
We supply and install A-rated combi boilers starting at 1,350 + VAT. Our service includes a free thermostat, magnetic filter, and 5-year warranty. Installations typically complete within one day, with flexible payment options available. All work carried out by Gas Safe registered engineers.
Annual Boiler Service
Our annual boiler service costs 95 and includes safety checks, combustion analysis, and system efficiency optimisation. Regular servicing maintains warranty validity and prevents carbon monoxide risks. We offer reminder systems to ensure timely maintenance.
Gas Safety Certificate
Landlord gas safety certificates start at 80, covering boiler and hob inspections. Required annually by law for rental properties, our certified engineers provide same-day documentation and compliance advice for residential landlords.
Central Heating Upgrade
Full central heating installations from 3,600 include A-rated boilers, radiators, and thermostatic controls. We assess property requirements to design efficient systems, with typical installations completed in 3-4 days and guaranteed for at least one year.
Fixed Price Repairs
Emergency boiler repairs start at 159 + parts, with no callout charges. Our Gas Safe engineers diagnose faults on-site and provide repair cost estimates before work begins. Price match guarantee applies to like-for-like repairs.
People
Andy Fraser
Co-Founder & Lead Engineer
Andy has 20+ years of gas engineering experience, trained by his father and grandfather. He focuses on technical excellence and traditional work ethics, ensuring all installations meet strict safety standards while maintaining customer satisfaction.
Paul Kilpatrick
Co-Founder & Operations Director
Paul brings extensive customer service expertise from growing a national restaurant chain. He manages business operations and client relations, ensuring seamless service delivery and financial transparency for all customer transactions.
Questions
How much does a new boiler installation cost?
Our boiler installations start at £1,350 + VAT for a combi boiler swap. Exact pricing depends on property specifics like boiler location and system complexity.
Do you offer emergency repair services?
Yes, we provide emergency boiler repairs with no callout charge. Our engineers typically respond within 24-48 hours of initial contact.
What payment options are available?
We accept bank transfers, card payments, cash, and offer financing over 3, 5, or 7 years subject to status for installations.
How long does a boiler service take?
Annual boiler services typically take 45-60 minutes, including system checks and radiator bleeding. Additional time may be required for multiple gas appliances.
What warranties do you provide?
New boilers include manufacturer warranties from 5-10 years. All installations carry a minimum 1-year workmanship guarantee.
Reviews (5)
R. P.
Dec 08, 2021 Report
Brilliant service. Can't recommend highly enough. Lewis inspected the boiler and gave me honest advice about what boiler system would be best for the house, as opposed to other quotes I had received for work that wasn't necessarily the right solution. Lewis was great to have deliver the work. He worked incredibly hard and efficiently and tidied up afterwards. Work done - Replacement boiler, full central heating flush, Hive installation
Kenny Chu
Nov 29, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
I have used AG Fraser for all boiler and heating needs for several years now and I have been very pleased with their work. My main point of contact has been Paul, whom I have found to be extremely helpful, professional and trustworthy.
Services:Heating system installation,Heating system repair
Nik M.
Nov 02, 2021 Report
Positive:Professionalism,Punctuality,Responsiveness,Value
Good service from AG Fraser. I got my Gas safety check and regular maintenance. Agreed on a date/time, and got the job done. Definitely recommend them.
Rachel Sheldon
Oct 17, 2021 Report
Really great service from AG Fraser, from first contact, to the visit for a quote, and then the installation of the new boiler. They were thorough, gave an accurate quote upfront, and kept me up-to-date on progress throughout. Andy was prompt, tidy, and did a really efficient job. A follow-up visit had to be arranged to finish the re-wiring of my smart thermostat; this was arranged within 48 hours. Very impressed, and wouldn't hesitate to recommend to others. Thanks very much!
Jason Mayo
Jul 26, 2021 Report
AG Fraser came to do a small job for us and I was impressed with their timeliness, tracking software to keep me up to date when engineer was arriving and the friendliness of the engineer that we got them back to install 6 new radiators. Communication between myself and Paul was amazing, he advised the best solutions for each room and handled everything smoothly. I'd 100% use AG Fraser again in the future for any other plumbing/heating issues.