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Professional Plumbing & Heating Services in Winchester
Established with a commitment to customer care and quality workmanship, McNeill Heating provides comprehensive plumbing, heating, gas, and renewable energy solutions for domestic and commercial clients across southern England. Our Gas Safe registered engineers, certified by City & Guilds and insured through Zurich Insurance, deliver tailored services including boiler installations, bathroom design, and system maintenance.

Backed by accreditations from Vaillant Advance, Viessmann, and RECC, we ensure compliance with industry standards while offering extended warranties and insurance-backed guarantees. Our focus on reliability, technical expertise, and client collaboration has earned us a reputation for excellence in complex installations and refurbishments.
Services
Boiler Installation Bathroom Design Gas Services Renewable Energy System Maintenance
Highlights and features
  • We hold Gas Safe registration and City & Guilds qualifications for technical excellence
  • Our engineers provide 7-12 year manufacturer warranties on boiler installations
  • Bespoke bathroom design service with full project management
  • Insurance-backed guarantees available for added peace of mind
  • Comprehensive public liability insurance up to 2,000,000
Associations and certifications
  • Gas Safe Register
  • City & Guilds
  • Vaillant Advance Approved Installers
  • Viessmann Approved Installers
  • RECC (Renewable Energy Consumer Code)
What people say
High standard Knowledgeable engineers Efficient service Spotless work area Timely completion
Services
Boiler Installation
Professional boiler installation services covering Vaillant and Viessmann models with 7-12 year manufacturer warranties. Our Gas Safe registered engineers ensure compliance with safety standards while optimising energy efficiency. We handle complete system replacements and upgrades for both domestic and commercial properties.
Bathroom Design
Full-service bathroom design and installation with project management from concept to completion. We collaborate with showrooms and manufacturers to deliver custom solutions incorporating the latest trends and technologies. Our team manages plumbing, tiling, and electrical requirements for seamless installations.
Gas Services
Comprehensive gas services including boiler servicing, cooker installations, and landlord safety certificates. Our qualified engineers perform annual maintenance schedules and emergency repairs while maintaining strict safety compliance. We specialise in both domestic and commercial gas system upgrades.
Renewable Energy
Installation of renewable energy systems including air source and ground source heat pumps. We specify Viessmann renewable technologies with integrated control systems for optimal efficiency. Our MCS-certified installations qualify for government incentive schemes where applicable.
System Maintenance
Preventative maintenance and repair services for plumbing and heating systems. We offer scheduled servicing contracts to ensure system longevity and efficiency. Our engineers address emergency repairs while maintaining compliance with insurance and warranty requirements.
People
Johnston McNeill
Director
With over 15 years' experience in the heating industry, Johnston leads our engineering team with expertise in complex system design and renewable energy integration. He holds City & Guilds qualifications and manages all installations to ensure compliance with Gas Safe standards.
Questions
What plumbing and heating services do you offer?
We provide boiler installations, bathroom design, gas services, renewable energy systems, and comprehensive maintenance solutions across southern England.
Are your engineers certified and insured?
All our engineers hold Gas Safe registration and City & Guilds qualifications with £2m public liability insurance through Zurich Insurance.
Do you offer extended warranties on installations?
As Vaillant Advance and Viessmann approved installers, we provide 7-12 year manufacturer warranties on qualifying boiler installations.
Can you handle complex renovation projects?
Yes, we specialise in complex system upgrades including loft conversions, pressurised systems, and historic building renovations with full project management.
What payment methods do you accept?
We accept bank transfers, cheques, and major credit/debit cards for all our plumbing and heating services.
Do you provide emergency repair services?
While we don't offer 24/7 emergency services, we prioritise urgent repairs during normal working hours with prompt response times.