Contracting Services

Professional heating and plumbing contractors for builders, developers, and main contractors across South London, Portsmouth, and Eastbourne. We deliver reliable, competitively priced mechanical services for new builds, refurbishments, and commercial projects, with a reputation for quality workmanship and meeting deadlines.

Trusted Heating Contractors for the Construction Industry

Mansfield Mechanical works directly with builders, developers, and main contractors to deliver heating and plumbing installations for commercial and domestic projects. Whether you're building new schools, refurbishing healthcare facilities, developing residential properties, or undertaking commercial fit-outs, we provide the expertise and reliability your project demands.

As a professional contracting partner, we understand the importance of coordination, communication, and meeting programme deadlines. Our team integrates seamlessly with your project, working efficiently alongside other trades to keep your build on schedule.

Our Contracting Services

We provide complete mechanical services including heating system design and installation, boiler installations, plant room builds, pipework and distribution systems, radiator and underfloor heating installations, bathroom and kitchen plumbing, and renewable technology integration including air source heat pumps and solar thermal.

Our Gas Safe and OFTEC certifications cover both commercial and domestic installations, whilst our CHAS accreditation demonstrates our commitment to health and safety on site. We carry full public liability insurance and professional indemnacy insurance for your protection.

New Build Projects

From single residential properties to large commercial developments, we deliver complete mechanical installations for new builds. We work from architects' drawings and specifications, or can provide design input where required, ensuring systems are correctly sized, energy efficient, and compliant with current Building Regulations.

Our project management approach ensures smooth coordination with your construction programme. We attend site meetings, provide progress updates, and flag any issues early to avoid delays.

Refurbishment and Fit-Out

Refurbishment projects often present unique challenges – working around existing structures, maintaining services during works, or integrating new systems with retained equipment. Our experienced team is adept at navigating these complexities, providing practical solutions that meet your specifications whilst managing constraints.

We're particularly experienced in refurbishing schools and healthcare facilities where minimising disruption is critical. We can phase works to maintain heating during term time, coordinate with operational schedules, and ensure compliance with sector-specific regulations.

Competitive Pricing and Transparent Quotations

We provide detailed, competitive quotations based on your specifications, drawings, and bills of quantities. Our pricing is transparent – you'll know exactly what's included, with no hidden costs or surprises. We're happy to provide value engineering suggestions where alternative approaches or materials might deliver cost savings without compromising quality.

Quality and Compliance

Every installation is completed to the highest standards and fully complies with Gas Safety Regulations, Building Regulations Part L, Water Regulations, and relevant British Standards. We provide all necessary certification including Gas Safe certificates, commissioning records, Building Regulations compliance certificates, and operation and maintenance manuals.

Our quality control processes ensure installations meet specification, with thorough testing and commissioning before handover. We stand behind our work with comprehensive warranties and aftercare support.

Reliable Project Partners

Builders and contractors return to us project after project because we're reliable, professional, and deliver quality work on time. Our team communicates clearly, solves problems proactively, and respects your site, your programme, and your reputation.

We understand that your business depends on dependable subcontractors who turn up when they say they will, complete work to specification, and don't create problems. That's exactly what we deliver.

Get in Touch

If you're a builder, developer, or main contractor looking for a reliable heating and plumbing subcontractor, we'd love to discuss your upcoming projects. Call us on 07908 724702.

Why Choose Mansfield Mechanical?

Trusted heating engineers delivering expert workmanship across Sussex and South London.

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Fully Accredited – Gas Safe, OFTEC and CIPHE certified

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Decades of Experience – Expert knowledge across all heating systems

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Personal Service – The same reliable engineers every time

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Sector Specialists – Trusted by schools, healthcare, and homeowners

The Mansfield Mechanical Difference

A smaller, professional team that genuinely cares about getting the job done right.

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Reliable Engineers – We show up when we say we will, every time

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Honest Advice – No unnecessary work, no hidden costs

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Flexible Scheduling – We work around you and your property

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All Systems Covered – Gas, oil, heat pumps, and solar thermal

Why Choose Mansfield Mechanical?

8

Fully Qualified Engineers

3

Industry Accreditations

3

Regions Covered

20+

Years of Combined Experience