Boiler installation, servicing, repairs and bathroom installations across Cardross, Dumbarton, Helensburgh, Alexandria and surrounding West Dunbartonshire towns. Trusted Gas Safe engineers with 72 years' local experience.
Preston Fleming Plumbing & Heating
Helensburgh Cardross Dumbarton and Alexandria Heating Specialists
89+ Five-Star Reviews
“”— New Reviewer
Services
Our Services
Expert heating services across Cardross, Dumbarton
Bathroom Installation
Design, supply and install — complete bathroom projects delivered end-to-end across Cardross, Dumbarton and the Clydebank area.
Boiler Installation
Gas Safe accredited boiler installation across Dumbarton, Helensburgh, Alexandria and Glasgow.
Boiler Servicing
Annual Gas Safe boiler servicing to keep your heating safe, efficient and warranty-compliant.
Boiler Repair
Reliable boiler repairs across Cardross, Dumbarton and surrounding areas
About Us
A local heating team with real heritage - since 1954
Preston Fleming is a family‑run heating business rooted in Cardross since 1954. Director James Fleming leads a small team of Gas Safe registered engineers who deliver tidy, reliable workmanship on boilers, hot water systems and bathroom installs — with a personal touch on every job.
“72 years of continuous local service (est. 1954)”
- Gas Safe registered engineers and multiple industry accreditations (BPEC, CCSS, SNIPEF)
- Ideal Max Accredited Installer — access to extended warranties and specialist training
- Manufacturer's warranties of up to 12 years
Why Choose Us
Why Choose Us
Generations of local know‑how
Three generations of Fleming engineers have worked on the homes of Cardross and Dumbarton. That continuity means deep familiarity with traditional stone villas, modern flats and suburban boiler systems.
Fully accredited and safety‑led
All gas work carried out by Gas Safe registered engineers. Additional qualifications include BPEC, CSCS and Water Industry Approved accreditation for safe, compliant installations and servicing.
Ideal Max accredited — extended protection
As an Ideal Max Accredited Installer we can offer exclusive support, factory training and extended warranties on qualifying Ideal boilers. All new boiler installations also come with a manufacturer's warranty of up to 12 years — a demonstrable value for new installs.
Testimonials
What our clients say
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New Reviewer
Ready to book a service or discuss an installation?
Call Preston Fleming on 01389841942 or email preston.fleming@btconnect.com for a friendly, no‑nonsense appraisal and written quote.