Business Details
12 Years
experience
Emergency
services
Expert Plumbing & Heating Services in Southampton & Hampshire
Mark Oliver Plumbing & Heating has been delivering expert heating and plumbing solutions across Southampton and Hampshire since 2014. Our team of qualified engineers specialises in oil boiler systems, solar water heating, air source heat pumps, and underfloor heating installations, combining technical expertise with a commitment to customer satisfaction. With no VAT to pay, our services offer exceptional value while maintaining the highest standards of workmanship. We prioritise energy efficiency and long-term reliability, ensuring properties remain warm and functional year-round.Our 24/7 emergency call-out service addresses urgent heating failures promptly, supported by scheduled maintenance programs to prevent breakdowns. Backed by over a decade of local experience and numerous client testimonials, we maintain transparent pricing and honest advice, establishing ourselves as trusted partners for residential and commercial clients throughout central and rural Hampshire.
Services
Oil Boiler Installation
Plumbing Repairs
Solar Water Heating
Air Source Heat Pumps
Underfloor Heating
Central Heating Upgrades
Hot Water Cylinders
Mains Water Repairs
Drain Repairs
Details
- Year established: 2014
Highlights and features
- We offer no VAT charges on any services
- Specialists in oil boiler installation and repair since 2014
- 24/7 emergency call-out service available
- Trusted local engineers serving Hampshire communities
- Energy-efficient renewable heating solutions available
What people say
Prompt and reliable
Excellent service
Competitive charges
Genuine tradesman
First class service
Services
Oil Boiler Installation
Professional oil boiler installation services tailored to property requirements and energy needs. We assess existing systems, recommend efficient replacements, and ensure full compliance with safety regulations. Our installations incorporate leading brands and include disposal of old equipment, system testing, and integration with existing heating infrastructure, delivering long-term reliability and reduced fuel consumption for residential and commercial properties.
Plumbing Repairs
24/7 emergency plumbing repairs for burst pipes, leaks, and system failures. Our qualified engineers handle domestic and commercial repairs including tap replacements, pipework upgrades, and pressure issue resolution. We prioritise rapid response times and permanent fixes, minimising property damage while ensuring safe, efficient water systems for both scheduled and urgent service requirements across Hampshire.
Solar Water Heating
Custom solar thermal system design, installation, and maintenance services. We optimise system performance through site-specific assessments, ensuring maximum solar gain and integration with existing heating infrastructure. Our services include collector installation, cylinder upgrades, and annual maintenance checks, helping clients reduce energy costs and carbon emissions while maintaining reliable hot water supply throughout the year.
Air Source Heat Pumps
Complete air source heat pump solutions from system design to servicing. We specialise in hybrid installations combining heat pumps with existing boilers, offering energy-efficient heating for new builds and retrofits. Our engineers ensure proper system sizing, regulatory compliance, and optimal integration with underfloor heating or radiators, providing sustainable warmth with minimal running costs.
Underfloor Heating
Bespoke underfloor heating installations for new builds and renovations. We design hydronic and electric systems tailored to property insulation levels and heat demand, integrating with renewable energy sources where appropriate. Our services include pipework installation, manifold setup, and system commissioning, delivering even heat distribution and energy efficiency across residential and commercial spaces.
People
Mark Oliver
Owner & Lead Engineer
Mark Oliver has provided specialist plumbing and heating services since 2014, focusing on oil boiler systems, renewable technologies, and emergency repairs. With over 15 years' industry experience, he combines technical expertise with customer-focused service, maintaining strong local client relationships through reliable, high-quality workmanship and transparent communication.
Questions
Do you offer emergency heating repairs?
Yes, we provide 24/7 emergency call-out services for urgent heating failures across Southampton and Hampshire.
Are your services VAT exempt?
Yes, as we're not VAT registered, all our services are charged without VAT additions.
What areas do you cover?
We serve Southampton, Portsmouth, Winchester, and all central and rural Hampshire locations including SO and mainland PO postcodes.
Do you service renewable heating systems?
Yes, we maintain solar water heating systems, air source heat pumps, and underfloor heating installations.
Can you integrate new boilers with existing systems?
Yes, we specialise in integrating new oil boilers with existing pipework and controls to maximise efficiency.
Do you offer discounts for emergency workers?
Yes, we provide a 10% discount for emergency service workers with a valid Blue Light card.
Reviews (2)
Steve Travers
Mar 01, 2026
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We recently had a new oil boiler installed at our home in Botley and we couldnt be happier. Mark was professional, punctual, and very tidy, explaining everything clearly during the installation. The boiler works perfectly, and the follow-up service was excellent. Highly recommend for anyone looking for reliable heating solutions! We would use the services of Mark Oliver Plumbing & Heating again in a heartbeat!
Lauren Foye
May 22, 2024
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My family have used Mark for a number of years, across several different properties, and have always found him to be hardworking, professional and reliable. Should things go wrong, Mark goes out of his way to help and has come out to fix boiler issues promptly in the past. I cannot rate him highly enough!
