Call Now
Website
Call
Business Details
13 Years
experience
Emergency
services
Open 24/7
always available
Expert Plumbing and Heating Services in Hampshire
Established in 2013, D Cowan has built a reputation as a trusted provider of plumbing, heating, and gas services across Hampshire and surrounding areas. Our team of Gas Safe registered engineers and WRAS-certified professionals brings over a decade of hands-on experience to every project, from minor repairs to full-scale bathroom renovations. We prioritise quality workmanship, offering comprehensive solutions including boiler installations, central heating systems, gas safety certificates, and bespoke bathroom designs.

Recognised by Hampshire Trading Standards and endorsed by hundreds of satisfied customers, we combine technical expertise with a commitment to reliability. Our approach ensures minimal disruption to clients' daily lives while delivering durable, compliant results. With 24/7 emergency availability and free no-obligation quotes, we remain accessible to both residential and commercial clients.
Services
Boilers Bathrooms Plumbing Gas Services Central Heating Repairs Installations Servicing Renovations Certificates
Details
  • Year established: 2013
Highlights and features
  • Over 12 years' experience in domestic plumbing and heating
  • Gas Safe registered engineers for all gas-related work
  • Recognised by Hampshire Trading Standards for quality standards
  • 24/7 emergency service for urgent plumbing/heating issues
  • Free no-obligation quotes for all projects
Associations and certifications
  • Gas Safe Register
  • Hampshire Trading Standards
  • Water Regulations Advisory Scheme (WRAS)
What people say
Prompt service Professional Reliable Excellent work Knowledgeable team
Services
Boiler Installations
We specialise in new boiler installations, including combi, system, and regular boilers. Our Gas Safe engineers ensure safe, efficient installations compliant with building regulations. We register all new boilers with manufacturers for warranty coverage and provide Gas Safe notifications for compliance certificates.
Bathroom Renovations
Offering complete bathroom installations and refurbishments, including tiling, plumbing, electrics, and joinery. We handle projects from cloakrooms to luxury en-suites, using traditional or modern methods to match property styles while ensuring functionality and aesthetic appeal.
Gas Safety Certificates
Providing Gas Safety Record (CP12) certifications for landlords and property managers. Our engineers inspect gas appliances, pipework, and ventilation systems to ensure compliance with UK safety standards, issuing certified documentation valid for 12 months.
Plumbing Repairs
Addressing leaks, burst pipes, faulty toilets, and other urgent plumbing issues. Our 24/7 emergency service minimises water damage risks, with same-day call-outs available across Hampshire and surrounding areas using fully equipped service vehicles.
Central Heating Systems
Designing and installing complete central heating systems, including radiators, thermostats, and unvented cylinders. We upgrade inefficient systems, repair faulty components, and service existing installations to ensure optimal performance and energy efficiency.
People
Doug Cowan
Owner/Plumber
With over 12 years' experience in domestic plumbing and heating, Doug leads D Cowan's team. Recognised for reliability and technical expertise, he specialises in boiler installations, bathroom renovations, and emergency repairs. Clients praise his clear communication and commitment to quality workmanship.
Questions
What services do you offer?
We provide boiler installations, bathroom renovations, gas safety certificates, central heating systems, plumbing repairs, and emergency services across Hampshire.
Are you available for emergencies?
Yes, we offer 24/7 emergency call-outs for urgent plumbing and heating issues with same-day service available.
Which areas do you cover?
We serve Gosport, Fareham, Portsmouth, Southampton, Eastleigh, and surrounding areas in Hampshire and the New Forest.
Do you provide guarantees?
All our work comes with full guarantees, including manufacturer warranties for new boilers and Gas Safe compliance documentation.
How can I get a quote?
Contact us via phone or email for a free, no-obligation quote with no hidden charges or surprise fees.
Are your engineers qualified?
Our team holds Gas Safe registration, WRAS certification, and Hampshire Trading Standards approval for compliance and safety.