Business Details
50+ Years
experience
HVAC Solutions and Prefabricated Plantrooms in High Wycombe
Established in 1965, Constant Air Systems has over 57 years of experience delivering mechanical, electrical, and plumbing (MEP) solutions. Our expertise lies in designing and manufacturing off-site prefabricated packaged plantrooms and skid solutions, serving commercial, education, health, and logistics sectors nationwide. With a family-owned heritage and annual turnover exceeding 20 million, we specialise in HVAC systems, energy efficiency upgrades, and tailored maintenance services.Our 14-week prefabrication facility in High Wycombe enables large-scale modular projects, combining technical precision with cost-effective delivery. Backed by partnerships with leading HVAC manufacturers, we provide component sourcing, system optimisation, and full lifecycle support to reduce carbon footprints. Our engineers maintain rigorous compliance standards while delivering bespoke solutions for projects ranging from small repairs to 3 million turnkey installations.
Services
Packaged Plantrooms
Skid Solutions
Modular Systems
MEP Engineering
HVAC Maintenance
Energy Efficiency
System Upgrades
Turnkey Projects
Details
- Year established: 1965
Highlights and features
- 56 years delivering HVAC solutions nationwide
- Family-owned with 20M+ annual turnover
- Off-site manufacturing since 1986
- Bespoke plantroom fabrication in 12-14 weeks
- Engineers certified for major HVAC brands
What people say
Timely delivery
Energy savings
Technical expertise
Custom solutions
Reliable service
Services
Packaged Plantrooms
Prefabricated HVAC plantrooms built to precise specifications in our High Wycombe facility. Each system integrates boilers, pumps, and controls within weatherproof enclosures. Delivered complete with BMS wiring and thermal insulation, reducing onsite construction time by up to 40% while ensuring compliance with industry standards.
Skid Solutions
Custom skid-mounted mechanical systems designed for rapid installation. Our steel base configurations support heating, chilled water, and gas services. Delivered fully tested with integrated lighting and control systems, enabling immediate commissioning at client sites across commercial and industrial sectors.
MEP Engineering
Mechanical, electrical, and plumbing (MEP) design and installation services. We handle projects from initial schematics to final commissioning, specialising in system integration for new builds and retrofit projects. Our engineers optimise performance while maintaining adherence to health and safety regulations.
HVAC Maintenance
Planned Preventative Maintenance (PPM) programmes tailored to extend equipment lifecycle. Our certified technicians perform regular servicing for major HVAC brands, combined with energy monitoring to identify efficiency improvements and reduce operational costs.
Energy Efficiency
Energy optimisation services including system upgrades and thermal efficiency improvements. We implement heat recovery solutions and variable speed drives to reduce energy consumption by up to 30%, supporting clients' sustainability objectives while maintaining comfort levels.
Questions
What HVAC services do you offer?
We design and install packaged plantrooms, skid solutions, and bespoke HVAC systems with nationwide installation coverage.
How long have you operated?
We've provided mechanical engineering solutions since 1965, with off-site manufacturing since 1986.
Can you handle large projects?
Yes, our High Wycombe facility handles projects up to £3 million value with modular components.
Do you provide maintenance?
Yes, we offer PPM contracts with certified engineers for all major HVAC brands.
How do you ensure quality?
All systems undergo factory testing before delivery, with full BMS integration and compliance documentation.
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