Complete Commercial Building ServicesWHAT WE DO
From a single AC unit to a full M&E fit-out — we handle every aspect of your commercial property’s mechanical and electrical needs.
SDH will maintain your existing services to make them last longer, cost less and give better results (heat, warmth, air conditioning, or lighting, for example). Our servicing plans can help alleviate major breakdowns and avoid down time after failures, save energy and potentially reduce gas/electric bills.
Offering bespoke, client-tailored services, for each project, rather than industry-standard responses. We take time to undertake a detailed site survey and full assessment of the client’s requirements and budget, and the specific challenges of the project, before producing clear recommendations for clients to evaluate.
SDH Building Services are the specialists when it comes to design and delivery of electrical systems, heating, ventilation, HVAC and air conditioning in Bolton, across the Northwest and beyond. Making sure that the mechanical and electrical systems can be serviced, repaired and/or upgraded is essential for any business or facility.
Approved Installer for Leading BrandsOUR PARTNERS
We work exclusively with tier-one manufacturers, giving you access to the best equipment, warranties and support.
Why Businesses Choose SDHTHE SDH DIFFERENCE
We don’t do generic. Every project gets a bespoke, client-tailored approach —because no two buildings are the same.
20+ Years in Business
Established in 2005, SDH has built a reputation for reliability across hundreds of commercial projects.
End-to-End Solutions
From initial design and planning through installation to ongoing maintenance — one team handles everything.
Fully Qualified Engineers
Every engineer is time-served, F-Gas certified, and trained on the latest systems from Daikin, Mitsubishi and Toshiba.
UK-Wide Coverage
Headquartered in Bolton with offices in Leeds. We deliver projects from London to Manchester and beyond.
Free Site Survey
We visit your premises, assess specific challenges, and provide a detailed, no-obligation quote — no generic responses.
Bespoke, Not Generic
Every project gets a tailored approach. We take time to understand your building, budget and requirements.
Featured ProjectsOUR WORK
Real projects, real results. Here’s a snapshot of the work we’re proud of.
Ready to Talk About Your Project?GET IN TOUCH
From system design and installation to upgrades and ongoing maintenance, we support commercial projects of all sizes. Get in touch to discuss your requirements and receive clear advice on next steps and costs.































