Extensions, lofts & renovations across Greater Manchester & Cheshire
Omni Developments Ltd - Design & Build Specialists

Extensions, lofts and renovations in Greater Manchester

Built with care. Finished with pride.

Home extensions, loft conversions, kitchens, bathrooms and full renovations, planned and built by one team from first visit to handover.

Professionally photographed open-plan kitchen with island and sliding doors to the garden
Grey-clad dormer loft conversion above a brick rear extension

We plan it, build it and finish it, so you deal with one team from the first visit to the final walkthrough.

Most building projects involve several trades and a long list of decisions. Our job is to keep all of it joined up, with a clear scope at the start, steady communication in the middle and a proper handover at the end.

Advice before you build

Plain-English guides to planning permission, Building Regulations, loft conversions and what to expect on site.

Before and after

The same home, before and after

The same homes photographed during the build and once finished. Drag the handle to compare.

Rear extension

Drag to compare the back of the house before work started, with its old single-storey addition, and the finished brick extension with wide sliding doors onto the lawn.

Rear of a detached house before work started, with the old single-storey back addition and white doors
Completed brick rear extension with wide sliding doors onto the lawn

From frame to finish

How a loft and extension comes together

Photographed on our sites: the structure going in, the roof opening up, insulation, through to the finished rear elevation.

Flat roof joists being laid on a new extension

Joists across the new roof

The flat roof structure goes on over the rear extension.

Roof deck boarded over a new extension with steel beam below

Deck boarded, steel in place

A boarded roof deck over the new opening, ready for the work above.

Dormer roof structure open to the sky during construction

Dormer framed out

The roof is opened up and the dormer framed in timber.

Rafters and roof lights being fitted inside a loft conversion

Rafters and roof lights

New rafters and roof-light openings bring daylight into the loft.

Foil-backed insulation boards fitted between roof rafters

Insulated, ready for boarding

Foil-backed insulation boards fitted between the rafters.

Grey-clad dormer loft conversion above a brick rear extension

Finished

A clad dormer above a brick extension with bi-fold doors and roof lights.

Kitchen island with breakfast bar stools under roof lanterns

Open-plan living, built around the kitchen

Structural openings, steelwork, roof lanterns, wide sliding doors and floors carried through the house. When the building work and the finish are planned together, new rooms feel like they always belonged.

Hallway with herringbone floor and a tall column radiator
Entrance hall and staircase with herringbone flooring
Cloakroom with herringbone floor and panelled door

How we work with you

A clear path from the first phone call to the day we hand back your home, so you always know what happens next.

Initial conversation

Tell us what you want to change and what matters most. We listen first and ask the practical questions early.

Site visit

We look at the property, access, structure and services, so the conversation is grounded in your actual house.

Scope and quote

You receive a written scope and quote, so you can see what is included before anything is agreed.

Build programme

We agree the sequence of work and when each stage happens, and keep you updated as it moves.

On-site delivery

Our team runs the build, coordinates the trades and checks quality as each stage is completed.

Handover

We walk through the finished work with you and close out the last details properly.

Where we work

Local to Greater Manchester and Cheshire

Our team and vans are on sites across the region every week. If you are near one of these, we would be glad to come and see your home.

Branded Omni Developments van parked on site

Questions we hear a lot

Something else on your mind? Our assistant can answer the basics instantly, and hands anything specific straight to the team on WhatsApp.

Every home is different, so we do not publish set prices. Cost depends on size, structure, finishes and access. After a free conversation and site visit, we give you a written quote with a clear scope, so you can see exactly what is included.

Some extensions and loft conversions can go ahead under permitted development, while others need full planning permission. It depends on the size, position and the property itself, and Building Regulations approval is usually needed either way. We talk it through with you at the site visit.

It depends on the scale of the work and what approvals are needed. Before anything starts we agree a build programme with you, so you know the sequence of work and roughly when each stage happens.

Often, yes. It depends on the scope and which rooms are affected. We explain how the work will be sequenced at quote stage so you know what to expect and can plan around it.

Yes. You have one point of contact, and we coordinate the trades on site, so you are not chasing different people for different parts of the job.

Greater Manchester and Cheshire, including Manchester, Salford, Sale, Altrincham, Hale, Stockport, Cheadle, Bramhall, Hazel Grove, Wilmslow. If you are just outside these, ask us on WhatsApp.

Free, no-obligation quote

Tell us about your project

Share a few details and we will get back to you to arrange a conversation and, if it suits, a site visit.

Get a free quote

Takes about a minute. Prefer more detail? Use the full quote form.