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Business Details
Award-Winning Home Extensions in Hamilton
Earnock Builders is a family-run building company led by proprietor Bill McEvoy, specialising in home extensions and conversions across Glasgow, Lanarkshire, and Central Scotland. With over 30 years of experience, we provide a comprehensive service from architect design to completion certification, ensuring quality workmanship and realistic pricing. Our team of professional, insured builders delivers projects ranging from small porch installations to full-scale extensions, prioritising customer satisfaction and minimal disruption. Recognised as Scotland's No.1 Home Extension Company from 2019-2024 by the Scottish Home Improvement Awards, we guarantee insured, high-standard work and ongoing support.

Serving areas including Hamilton, East Kilbride, Newton Mearns, and Giffnock, we combine local expertise with national recognition to transform properties efficiently. Our dedicated project managers oversee every stage, ensuring clear communication and adherence to timelines, with extensions typically completed in 4-8 weeks depending on size. As an award-winning business with a reputation for reliability, we invite you to discuss your home improvement needs and experience our 5-star service firsthand.
Services
Home Extensions Loft Conversions Garage Conversions Porch Installations Garden Rooms
Highlights and features
  • We have 30+ years of experience in home extensions and conversions.
  • Our dedicated project managers ensure clear communication throughout your project.
  • All work is fully insured with guaranteed results.
  • We complete extensions in 4-8 weeks, faster than industry averages.
  • Recognised as Scotland's No.1 Home Extension Company for five consecutive years.
What people say
5 star service Expert builders Completed on time
Services
Home Extensions
We design and construct custom home extensions, from single-story additions to full property expansions. Our process includes architectural planning, project management, and compliance certification. Clients benefit from rapid completion times (4-8 weeks) and guaranteed workmanship, with projects overseen by dedicated managers to ensure minimal disruption and adherence to agreed timelines.
Loft Conversions
Transform unused loft space into functional living areas with our expert conversion service. We handle structural modifications, insulation, and finishing touches to create additional bedrooms, offices, or recreational spaces. Projects include building regulation compliance and are completed by experienced tradespeople, ensuring safety and value addition to your property.
Garage Conversions
Repurpose existing garages into habitable rooms such as home gyms, studios, or guest accommodations. Our service includes structural adaptations, electrical upgrades, and interior finishing. We maintain strict quality standards and provide guaranteed results, converting underutilised spaces into valuable extensions of your living environment.
Porch Installations
Enhance property aesthetics and functionality with custom porch installations. We construct durable, weatherproof entryways using high-quality materials, incorporating design elements to match your home's architecture. Projects are completed efficiently while maintaining structural integrity and compliance with local building standards.
Garden Rooms
Create versatile garden rooms for leisure, work, or entertainment purposes. Our constructions include insulated structures with electrical provisions, suitable for year-round use. We focus on seamless integration with outdoor spaces while maintaining high standards of craftsmanship and material durability.
People
Bill McEvoy
Owner
With over 30 years in the building industry, Bill McEvoy leads Earnock Builders as proprietor. His hands-on approach ensures every project maintains high standards. Under his leadership, the company has won multiple Scottish Home Improvement Awards.
Questions
Do I need planning permission for a home extension?
Planning permission isn't always required. Our team will advise on specific requirements for your project during the initial consultation.
How long does a typical home extension take to build?
Most extensions complete in 4-6 weeks, with larger projects taking 6-8 weeks. We provide exact timelines before work commences.
Are your builders insured and qualified?
All work is fully insured. Our team consists of professional, time-served builders with expertise in residential construction projects.
What areas do you cover for home extensions?
We operate across Glasgow, Lanarkshire, and much of Central Scotland, including Hamilton, East Kilbride, Newton Mearns, and Giffnock.
Can you handle the entire extension process from design to completion?
Yes, we provide end-to-end services including architectural drawings, planning applications, and completion certification for your convenience.
What makes Earnock Builders different from other extension companies?
As Scotland's No.1 Home Extension Company (2019-2024), we combine rapid completion times with guaranteed workmanship and dedicated project management for every client.