scheduleMon–Thu 8am–5pm · Fri 8am–4:30pm

More Than a Plumbing & Heating Contractor

Delivering Across Domestic, Social Housing, Commercial and New Build Sectors.

About Us

Henman Dunn delivers plumbing, heating, renewable energy and mechanical services across the domestic, social housing, commercial and new build sectors throughout the East Midlands.

From planned maintenance and responsive repairs through to large-scale heating replacement programmes, renewable energy installations and new build developments, we provide clients with a single delivery partner capable of supporting projects throughout their entire lifecycle.

Henman Dunn engineers during a site visit in Derbyshire
Henman Dunn coordinating live site visits and project delivery across Derbyshire

Our experienced team supports homeowners, housing providers, local authorities, developers, principal contractors and commercial organisations, combining technical expertise with practical delivery experience to ensure projects are completed safely, efficiently and to the highest standards.

We understand that successful projects are about more than installation alone. Whether working within occupied homes, live construction sites, commercial premises or community buildings, we focus on communication, coordination and customer experience as much as the technical aspects of the work itself.

By bringing together expertise in plumbing, heating, renewables, servicing, compliance and refurbishment, we help clients simplify delivery, reduce risk and achieve consistent outcomes across every project.

12+ Years Established
35+ Team Members
150+ 5-Star Reviews

Why Clients Choose Henman Dunn

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Multi-Sector Expertise

Supporting domestic, social housing, commercial and new build clients through a single trusted delivery partner.

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Complete Service Offering

From servicing and maintenance through to renewables, heating installations, kitchens, bathrooms, adaptations and facilities management.

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Renewable Energy Specialists

Delivering Air Source Heat Pumps, Solar PV, Battery Storage and decarbonisation projects across both domestic and social housing sectors.

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Proven Delivery Capability

Supporting thousands of service visits, planned maintenance activities and installation projects every year across the East Midlands.

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Customer-Focused Approach

Clear communication, responsive service and a commitment to delivering positive outcomes for clients, residents and end users alike.

🏛️c.1800
The Glasshouse Inn Opens

Our headquarters site was originally home to the Old Glasshouse Inn — one of Codnor’s oldest public houses.

🔧2014
Henman Dunn Founded

Ashley Henman and Kieren Dunn launched the business with a focus on quality plumbing and heating across East Midlands.

🌱2020
Renewables Expansion

ASHPs, Solar PV and Battery Storage became a major offering as the industry shifted to low-carbon heating.

🚀Today
Building for the Future

From Glasshouse Hill we support domestic, social, commercial and new-build clients across all our services.

🍺1967
A New Chapter

The original inn was rebuilt under Mansfield Brewery ownership, keeping the site as a local landmark.

🏠2017
Social Housing Expansion

We began supporting housing providers with servicing, heating replacements and responsive repairs at scale.

🏢2024
35+ Strong Team

With 35 employees delivering over 7,000 service visits annually across the East Midlands.

Find Us

Based in Ripley, Serving Derbyshire and the wider East Midlands

Our office is based in Ripley, giving us fast access across Derbyshire and the wider East Midlands area for everything from emergency callouts to planned installation work.

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Address

38 Glasshouse Hill, Codnor
Ripley, Alfreton, Derbyshire, DE5 9QT

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Phone

01773 688160
schedule

Hours

Mon–Thu 8am–5pm
Fri 8am–4:30pm

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★★★★★ 4.9 Google Reviews 163 reviews
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