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Expert Plumbing & Heating Solutions in Darlington
Stewart Chapman Plumbing & Heating is a family-run business with over 40 years of expertise in plumbing, heating, and renewable energy solutions across the North East of England. Established as a limited company a decade ago, we combine decades of hands-on experience with modern technical knowledge to deliver high-quality services. Our team of directly employed, time-served professionals works alongside trusted partners to handle projects ranging from minor repairs to large-scale installations. We prioritise compliance with industry standards, holding accreditations such as Gas Safe, OFTEC, and Chartered Institute of Plumbing and Heating Engineering registration. Our commitment to excellence extends to water treatment advice, lead main renewals, and preventative maintenance, ensuring safe, efficient systems.

Operating from fully equipped vans, we maintain low overheads to offer competitive pricing without compromising on quality. Customer satisfaction remains our focus, supported by a 24/7 breakdown service for urgent needs. Our partnerships with leading brands like Vaillant and Baxi enable tailored solutions for domestic and commercial clients. Based in Darlington, we serve private homeowners, public institutions, and businesses across County Durham and surrounding areas. This blend of experience, accreditation, and local knowledge positions us as a trusted partner for all plumbing and heating requirements.
Services
Boiler Installations Wet Room Conversions Emergency Repairs Renewable Energy Systems Bathroom Refurbishments Water Treatment Gas Safety Certificates Underfloor Heating Lead Main Renewals Commercial Plumbing
Highlights and features
  • We have over 40 years of experience in plumbing and heating services.
  • Our engineers are Gas Safe registered and fully qualified.
  • We offer a 24/7 breakdown service for urgent heating issues.
  • Competitive pricing maintained through low operational overheads.
  • We work with leading brands like Vaillant and Baxi for reliable installations.
Associations and certifications
  • Gas Safe
  • OFTEC
  • Chartered Institute of Plumbing and Heating Engineering
  • WRAS
  • Energy Efficient
Services
Boiler Installations
We specialise in installing high-efficiency gas, oil, and electric boilers compliant with Part L regulations. Our Gas Safe engineers work with leading brands like Vaillant and Baxi to ensure reliable, energy-efficient heating solutions. All installations include certification and commissioning for safety and performance.
Wet Room Conversions
Transform your bathroom with level-access wet rooms designed for safety and modern aesthetics. Our team handles waterproofing, tiling, and drainage systems to create functional spaces suitable for all mobility levels while maintaining luxury finishes.
Emergency Repairs
Available 24/7, our rapid-response team addresses urgent heating and plumbing failures. Gas Safe engineers diagnose and resolve issues with boilers, gas fires, and pipework to restore comfort and safety swiftly.
Renewable Energy Systems
We install solar thermal panels, air source heat pumps, and biomass boilers to reduce energy costs and carbon footprints. Systems are tailored to property requirements, including thermal stores and solar cylinders for optimal efficiency.
Commercial Plumbing
From new builds to preventative maintenance, we deliver scalable plumbing solutions for commercial properties. Services include unvented hot water systems, drainage upgrades, and compliance with industry safety standards.
Questions
Are your engineers Gas Safe registered?
Yes, all our gas engineers are Gas Safe registered for safe, legal installations and repairs.
Do you offer emergency heating repairs?
We provide a 24/7 breakdown service for urgent boiler and heating system failures.
What areas do you cover?
We serve Darlington, Newton Aycliffe, Bishop Auckland, and surrounding areas in the North East.
Can you install wet rooms for accessibility?
Yes, we design and install level-access wet rooms with non-slip flooring and safety features.
Do you work with commercial clients?
We offer plumbing and heating solutions for businesses, including new builds and maintenance contracts.
What boiler brands do you install?
We install leading brands including Vaillant, Baxi, Worcester, and Ideal boilers.