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J M A Group

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Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from J M A Group, Property investment firm, Suite 2A, Blackthorn House, St Paul Square, Birmingham.

👷‍♂️ CONSTRUCTION CONSULTANT |
Survey • Design • Manufacture • Supply • Manage • Build

🏠 PROPERTY DEVELOPMENT

💎 DIAMOND INTERIOR |
Kitchens • Bathrooms • Bedrooms

💎 DIAMOND BUILDING MATERIALS |
Home Improvement Supplies

01/11/2026

How Much Does a Renovation Actually Cost?

It’s a tricky question, because there are two very different types of renovation.

The two types of renovation:
1. Touch-up – Usually suited to rented properties: fresh paint, new flooring, and new doors and architraves. For a 3-bed house including the kitchen and bathroom, expect around £25k to £35k on average.
2. Back to brick – Plasterboard ripped out, full rewire, new plumbing, new flooring, painting, decorating, and new carpentry throughout. For a standard 3-bed semi-detached house, expect around £45k.

As you can see, there’s a big gap between the two, so knowing exactly what you need is the first step to planning your budget properly.

👇 Comment “RENOVATION COST” below and we’ll send you our free guide.

📞 Or message J M A Group today for an honest, all-inclusive quote on your renovation.

30/10/2026

Site Visit: Single-Storey Extension with Downstairs Bedroom & WC

Take a look at what’s planned on site as this extension adds a new ground floor bedroom and WC, with no internal walls coming out.

Project details:
1. Extension 3 metres out and 5 metres wide, creating approximately 15 sqm of new space
2. New downstairs bedroom with WC
3. Existing door blocked off, with a side passage kept for access to the garden
4. New single door on the side of the extension
5. Lean-to pitch roof
6. Existing window blocked up, with a new half-metre opening window at the edge of the extension, subject to engineer approval
7. Brick finish with slate tiles, matched to the existing property
8. Suspended floor either matched or replaced with a concrete slab, with ventilation run out to the exterior

From design to completion, J M A Group manages every stage of the project.

👇 Comment “EXTENSION” below, and we’ll send you our free guide.

📞 Or message J M A Group today to start planning your extension.

28/10/2026

Site Visit: Loft Dormer, Wrap-Around Extension & Full Renovation

Take a look at what’s happening on site as this home gets a complete turnkey transformation.

What’s happening on site:
1. Existing loft opened up and boxed out with a new loft dormer
2. Loft partitioned with a central walkway, creating two single bedrooms
3. New bathroom added in the loft space
4. Existing staircase to be replaced, as it doesn’t meet current regulations
5. Existing office converted into a new bathroom
6. Existing bathroom turned into a bedroom
7. Existing kitchen ripped out, with the wall coming out to make way for the extension
8. Wrap-around extension going around the property

And it’s all done as a turnkey solution, including the kitchen, bathroom, flooring, and full decoration of the whole house.

👇 Comment “LOFT” below, and we’ll send you our free guide.

📞 Or message J M A Group today to start planning your project.

26/10/2026

That dark loft or dusty garage could be so much more.

This Halloween, J M A Group is giving away free engineering on every loft and garage conversion. That’s your structural calcs sorted at no cost.

Picture a bright new bedroom, a home office or a playroom. All without moving house.

👉 Comment “HALLOWEEN” below and we’ll DM you the offer.

Limited spaces. Offer ends 31st October 2026. T&Cs apply.

24/10/2026

Something’s brewing at J M A Group this Halloween.

Get 10% off your kitchen upgrade. More storage, better flow and a space your family will love.

The kitchen is the heart of your home. Let’s make it one you’re proud of.

👉 Comment “HALLOWEEN” to claim your 10% off. We’ll DM you the details.

Offer ends 31st October 2026. T&Cs apply.

📞 0121 339 5800 | jmagroup.co.uk

24/10/2026

Spooked by your old bathroom? Let’s fix that.

Book a bathroom supply and fit with J M A Group this Halloween. We’ll add a free bathroom mirror to finish the look.

From walk-in showers to full refits, we handle it all. One team, from design to final fit.

👉 Comment “HALLOWEEN” and we’ll send your free mirror offer straight to your DMs.

Limited-time offer. Ends 31st October 2026. T&Cs apply.

📞 0121 339 5800 | jmagroup.co.uk

23/10/2026

No tricks. Just a clear plan for your dream home.

This Halloween, J M A Group is offering free planning on home renovations. We’ll map out your layout, scope and next steps together.

Whether it’s one room or the whole house, you’ll know exactly where you stand.

👉 Comment “HALLOWEEN” and we’ll DM you how to book your free planning session.

Limited spaces. Offer ends 31st October 2026. T&Cs apply.

📞 0121 339 5800 | jmagroup.co.uk

23/10/2026

Before & After: Loft Conversion

From unused attic space to a stunning new bedroom.

Take a look at the transformation as this loft goes from empty and dusty to bright, comfortable, and beautifully finished.

What we delivered:
a. New staircase leading up to the loft
b. Brand-new bedroom, adding valuable living space
c. New windows to bring in natural light
d. Fully insulated walls and roof for year-round comfort
e. New electrics, lighting, and heating throughout
f. Full plastering, painting, and finishing touches

A loft conversion is one of the best ways to add space and value to your home, without losing any of your garden.

From design and planning to construction and aftercare, J M A Group handles every stage.

📞 Message us today to start planning your loft conversion.

21/10/2026

No Contract? You’re Taking a Big Risk

When you’re getting any renovation done, please make sure you have a contract in place with your builder.

Our advice:
a. Always get a written contract; no contract or cash-only jobs
b. Without one, builders can walk off site at any time and leave you with the bill
c. Get a third party involved to check the quality of the work
d. Not all builders handle project management, so don’t assume it’s covered
e. Choose a design and build contractor, so quality control is done at every stage

That way, you don’t lose out, and your builder can’t simply walk away.
👇 Comment "CONTRACT" and we'll send you our free guide

📞 Message J M A Group today for a clear, all-inclusive quote on your project.

Address

Suite 2A, Blackthorn House, St Paul Square
Birmingham
B31RL

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Website

http://www.jmagroup.co.uk/

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