Home Extensions in St Albans, Hertfordshire
Bespoke Extensions that add space, light and long-term value
Need more room but love your neighbourhood? Our home extensions in St Albans are designed to give you extra space without giving up the home you already love. Whether you’re planning a kitchen upgrade, rear extension or a full layout transformation, we’re here to make it easy, personal and built to last.
Extend your home without compromise
At Ohmega Construction, we don’t just add space—we build bespoke home extensions that feel right. Whether you want to open up the back of your house, add an extra floor, or rethink your ground-floor layout, we handle the entire process—from planning to final finishes—with care, clarity and craftsmanship.
As a trusted house extension builder in St Albans, we manage every detail, so you can stay focused on the exciting part—watching your home come to life. And when it comes to understanding your house extension cost in St Albans, we keep it honest and upfront. No vague numbers. No last-minute add-ons.
Built for how you live.Designed to last.
Professional home extension services built around you
Every home in St Albans is different—and so is every extension we build. We take the time to understand how you live, what matters most, and how to get the best out of your space.
Rear Extensions St Albans
Make more room for family life, entertaining, or simply breathing space with rear extensions that blend beautifully into your home and garden.
Side Return Extensions
Brighten and expand narrow side areas with side return extensions that make a big difference—especially in terrace and semi-detached homes.
Double Storey Extensions
Add living space upstairs and down with a smart, seamless double storey extension that delivers real value and better flow.
Wraparound Extensions
Combine side and rear layouts to transform your ground floor with a wraparound extension that makes space for everything.
Structural Work and RSJ Installation
We manage all technical work, including RSJ (steel beam) installation, so your extension is safe, secure and built to last.
Finishes, Interiors and Landscaping
From custom joinery and flooring to lighting and outdoor landscaping, we handle it all—with a clean, polished finish you’ll love.
Open-Plan Extensions St Albans
Bring your kitchen, dining and living areas together with a light-filled open-plan extension that fits the way you live today.
Kitchen and Dining Extensions
Upgrade your kitchen with a tailored kitchen extension that balances beautiful design with everyday practicality.
1. Initial Consultation and Site Visit
We’ll visit your home in St Albans to talk through your ideas, explore what’s possible, and understand your space and priorities.
2. Design, Planning and Cost Proposal
You’ll receive a detailed, transparent quote that breaks down your house extension cost in St Albans, along with planning advice and layout guidance.
3. Structural Work and Build
From groundwork to roofing, we manage the entire build with our trusted team—keeping the site safe, tidy and running smoothly.
4. Interior Fit-Out and Finishing Touches
We finish what we start—plastering, decorating, flooring, lighting and everything in between—so the space feels like home from day one.
5. Final Inspection and Handover
We check every detail, fix any snags, and hand over your completed extension ready to enjoy—clean, finished and fully yours.
Your house extension specialist in St Albans
From Edwardian terraces to modern family homes, we deliver high-quality home extensions in St Albans that feel natural, functional, and made for the way you live. Whether you’re building out, up, or around, we bring experience, care and craftsmanship to every detail.
Ready to start your St Albans extension project?
Book your free consultation today and find out how a bespoke home extension from Ohmega Construction can give your home the space and feel it truly deserves.
Frequently asked questions
It depends on size, design and materials—but we’ll give you a detailed quote upfront so you know exactly what to expect.
Some home extensions in St Albans are covered under permitted development. We’ll advise you and handle the applications if needed.
Most projects take 10–16 weeks. We’ll provide a realistic timeline before starting and keep you in the loop every step of the way.
Yes. From design support and structural work to interiors and landscaping, we take care of everything from start to finish.
Definitely. Whether you want a seamless match or a modern contrast, we’ll make sure it suits your property and personal taste.
Alongside St Albans, we also work across Hertfordshire, Buckinghamshire and Bedfordshire—including Rickmansworth, Chorleywood, Kings Langley, and surrounding villages.