SDH : Your Trusted HVAC Partner in Bolton and Beyond
At SDH, we take pride in being one of the region’s leading providers of commercial HVAC and air conditioning solutions. Serving Bolton and the surrounding areas including Bury, Horwich, Farnworth, Kearsley, Salford and Westhoughton our mission is simple: to deliver tailor made climate control systems that maximise comfort, efficiency, and reliability for your business.
From initial consultation through to installation, servicing, and repairs, our experienced team specialises in designing and maintaining systems that are customised to your exact needs. We don’t believe in one size fits all solutions every project is carefully planned to ensure optimum performance, energy efficiency, and long-term value.
Air Conditioning Services Bolton
We offer:
- Air conditioning & ventilation installation
- Air conditioning & ventilation surveys
- Air conditioning consultancy
- Air conditioning repairs
- Ventilation service and repair
- Air conditioning maintenance/servicing
- Planned preventative maintenance (PPM)
- Daikin air conditioning products
- Mitsubishi air conditioning products
- Toshiba air conditioning products
If you require any type of commercial Air Conditioning, Ventilation or HVAC service in Bolton, Greater Manchester, Lancashire or across the Northwest, simply call us, email us or get a quick quote.
Our Commitment
At SDH, customer satisfaction is the foundation of everything we do. We are dedicated to exceeding expectations by delivering dependable, cost effective, and future ready air conditioning and HVAC solutions. Whether you’re upgrading your current air conditioning system, expanding your facilities, or simply need expert servicing, SDH is here to ensure your business stays comfortable all year round.
Why Choose SDH?
Expertise You Can Trust : With years of industry experience, our engineers are fully trained in the latest technologies and methods, ensuring your system is installed to the highest standards.
Tailored Solutions : We take the time to understand your business, its unique requirements, and its environment, providing solutions that work for you, not just today, but well into the future.
Partnerships with Leading Brands : By working with trusted suppliers and premium equipment manufacturers, we guarantee installations that are durable, efficient, and built to last.
Minimal Disruption : We know how important it is to keep your operations running smoothly. That’s why we focus on timely installations and efficient servicing with minimal downtime.
Ongoing Support : From routine maintenance to fast response repairs, SDH provides reliable aftercare to ensure your HVAC system continues to perform at its best.
Get in touch
Coverage
SDH is a trusted nationwide provider of commercial plumbing, heating, air conditioning, ventilation, and complete HVAC solutions. We deliver high-quality, reliable services to businesses and organisations across the UK – from installation and maintenance to system upgrades and emergency repairs.
Our expert team operates throughout the country, serving clients in Birmingham, Blackburn , Blackpool, Bolton, Bradford, Cheshire, Chester, Cumbria, Lancashire, Lancaster, Leeds, Liverpool, London, Manchester, Merseyside, Midlands, Norwich, Preston, Wales, Wakefield, Warrington, Wigan and Yorkshire.
Whether you require a bespoke HVAC system design, routine servicing, or rapid response repairs, SDH combines technical expertise with a commitment to safety, efficiency, and client satisfaction.
Contact SDH today to learn more about our full range of commercial plumbing, heating, and HVAC services or to discuss your next project.
Frequently asked questions
Commercial systems are larger, more complex, and designed to cool bigger spaces with multiple zones, while residential systems serve smaller, single-zone areas.
Typically, 10–15 years, depending on usage, maintenance, and system type.
Building size, layout, energy efficiency requirements, cooling load, budget, and future expansion needs.
Installation can take anywhere from a few days to a few weeks depending on system size, ductwork, and building complexity.
Not always—ductwork is inspected first. If it’s leaky, undersized, or damaged, replacement or sealing is recommended.
Options include rooftop units (RTUs), VRF/VRV systems, split systems, and chillers. The best choice depends on your building’s size, use, and efficiency needs.
Most contractors work to minimise downtime by scheduling work during off-hours or in phases.
At least twice a year (spring and autumn), but some high-use facilities may need quarterly service.
- Uneven cooling or hot spots
- Strange noises or odors
- Rising energy bills
- Frequent cycling or system downtime
- Poor airflow
It’s best to repair issues promptly to prevent costly breakdowns and extend system life.
Preventive maintenance can include:
- Filter changes · Coil cleaning
- Checking refrigerant levels
- Inspecting belts, motors, and electrical connections
- Calibrating thermostats and controls
SDH are based in Bolton and provide professional air conditioning and HVAC services across the Northwest and beyond. We cover all areas of Bolton including Lostock, Heaton, Astley Bridge, Halliwell, Smithills, Middlebrook, Bromley Cross, Harwood, Horwich, Westhoughton, Kearsley and Over Hulton. If you require any type of HVAC or air conditioning service in Bolton or beyond contact SDH (/contact/).
SDH are based in Bolton and provide professional air conditioning and HVAC services across the Northwest and beyond. This includes Birmingham, Blackburn , Blackpool, Bolton, Bradford, Cheshire, Chester, Cumbria, Lancashire, Lancaster, Leeds, Liverpool, London, Manchester, Merseyside, Midlands, Norwich, Preston, Wales, Wakefield, Warrington, Wigan and Yorkshire. If you require any type of HVAC or air conditioning service in Bolton or beyond contact SDH.