Find 3 Builders You Can Count On in Knebworth

Mars Building Group is a Hertfordshire-based construction contractor specialising in sustainable homes, Passivhaus builds, extensions, and refurbishments. With extensive industry experience, we deliver high-quality, energy-efficient projects tailored to client specifications. Our client-centric approach combines expert craftsmanship with sustainable practices.

Alpine Building Solutions is a trusted Hertfordshire-based construction company specialising in house extensions, new builds, and renovations. With over 30 years of local experience, we deliver high-quality, reliable building services tailored to residential needs. Our commitment to excellence is supported by comprehensive insurance and a 100% positive client feedback record.

Climate Force provides specialist solar photovoltaic panel installation and battery storage solutions throughout Hertfordshire. We design, supply and install premium MCSapproved systems, offering free surveys, bespoke engineering and full insurancebacked warranties. Our purpose is to enable homeowners and businesses to reduce energy costs and carbon emissions by delivering reliable, highperformance renewable energy installations.