
Plumbing And Heating Services
Expert Plumbers And Heating Engineers In Ayrshire
Darwin Johnstone Plumbing and Heating has been delivering reliable plumbing and heating services since 1993. Serving homes across Ayrshire, our skilled team, with over 100 years of combined workforce experience, handles everything from boiler repairs and central heating installations to Gas Safety Inspections and plumbing repairs. Whether you need a quick repair or a complete heating system upgrade, we’re here to help.
Contact us today for expert assistance.
First Class Service
Highly Trained Staff
Many Years’ Experience
About Darwin Johnstone Plumbing and Heating
We are a local, family-run business providing reliable heating and plumbing services for homes across Ayrshire. Since 1993, our team has specialised in the service, installation, and repair of natural gas, oil, and LPG appliances, along with Gas Safety Inspections and plumbing repairs. Led by Darwin Johnstone, an ex-British Gas-trained professional, we have a combined workforce experience of over 100 years in the industry. We are committed to offering dependable solutions. All our engineers and gas installers are registered Gas Safe, ensuring your property is safe. We combine expertise with a focus on quality, delivering services at competitive prices.
Our Services





Out Of Hours Service
Darwin Johnstone Plumbing and Heating is dedicated to customer satisfaction with quality workmanship, whether at home or in the workplace.
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Affordable Solutions: Fix issues before they escalate with repairs that fit your budget.
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Transparent Pricing: Clear, upfront costs—no hidden fees or surprises.
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Qualified Engineers: Fully Qualified and Accredited plumbers
Count on us for dependable support, even outside regular hours.
Hear From Our Happy Customers
First-Class Service
We have recently had combi boiler installed by Darwin and his team. They removed our old boiler and tank and their attention to detail was first class throughout the whole process. New pipework was installed with minimum disruption. Would definitely recommend this company!
Outstanding Service
I have used Darwin Johnstone Gas Services Plumbing and Heating's services for several years. They have always provided excellent, efficient, and professional service from initial contact to resolution.
I would have no issue with personally recommending their services.
Fantastic Service
Fantastic service. We had a water burst, and Darwin attended within 40 minutes to repair it.
Boiler Service
Great service and fantastic value for money. I wouldn’t go anywhere else! Thanks again.
Quick Service, repaired the same day
Fantastic quick service all repaired the same day, very polite and friendly engineer. Thanks again. Will definitely use Darwin Johnstone in the future.
Excellent, friendly service
Excellent reliable firm , have used them several times over the years, always had excellent service, friendly pleasant staff.l would definitely recommend this firm.