J M A Group

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

πŸ‘·β€β™‚οΈ CONSTRUCTION CONSULTANT |
Survey β€’ Design β€’ Manufacture β€’ Supply β€’ Manage β€’ Build

🏠 PROPERTY DEVELOPMENT

πŸ’Ž DIAMOND INTERIOR |
Kitchens β€’ Bathrooms β€’ Bedrooms

πŸ’Ž DIAMOND BUILDING MATERIALS |
Home Improvement Supplies

16/10/2026

Ground Floor Transformation: Creating Two New Bedrooms

Take a look at what's happening on site as this living room gets transformed into two brand-new bedrooms.

What's happening on site:
a. Existing living room partitioned down the middle to create two separate bedrooms
b. New entrance leading into the space
c. Opening created with a steel beam
d. Flat fibreglass roof, with a patio door on one side and a kitchen window on the other
e. New L-shaped kitchen
f. New bathroom
g. Render finish with a concrete slab base
h. Black guttering and matching fascias to tie in seamlessly with the existing property

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

πŸ“ž Message us today to start planning your ground floor transformation.

14/10/2026

Why Foundations Matter More Than Anything Else

Get your foundations right, and your building goes up seamlessly. Get them wrong, and you're looking at collapse or subsidence down the line.

The main types of foundations:
1.Raft foundations – Extra support, spreading the load evenly across the base
2. Trench foundations – Full fill, where the whole foundation is filled with concrete
3. Strip foundations – Half filled with concrete, with the blockwork starting from there

Getting this right from day one is what makes the difference between a solid build and a costly problem later.

πŸ“ž Message J M A Group today to start planning your project the right way.

12/10/2026

Site Visit: Wrap-Around Extension

Take a look at what's happening on site as this wrap-around extension takes shape.

What's happening on site:
1. New partition going in, creating an office space with an outward-opening door
2. Office to be skimmed and painted, with flooring levelled to match throughout
3. Existing kitchen structure coming out to make way for the extension
4. External tap being added outside
5. Open-plan kitchen diner, wrapping around from the front of the property
6. Dedicated utility area included in the layout
7. Black fibreglass roof throughout, carried through to the front with an upstand
8. New bedroom with en-suite included as part of the extension

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

10/10/2026

Site Visit: Full Renovation & Loft Conversion

Take a look at what's happening on site as this full renovation and loft conversion comes together.

What's happening on site:
1. New opening created into the garage section
2. Loft conversion with new stairs built in the box room, leading straight up
3. New doorways created for Bedroom 1 and Bedroom 2 β€” taking the home to 4 double bedrooms in total
4. Wall coming out to make way for a brand-new, manufactured kitchen
5. Structural damage identified and being addressed as part of the works
6. Rear extension, approximately 3 metres out and 8.5 metres across
7. Gable wall built up, with the roof changed to an apex design

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

πŸ“ž Message us today to start planning your renovation.

10/10/2026
08/10/2026

Site Visit: Single-Storey Side Extension

Take a look at what's happening on site as this side extension takes shape.

Project details:
a. Single-storey side extension, 4 metres wide x 7 metres deep
b. Apex roof design
c. Strip foundations (trench fill), brick and block finish
d. Full planning, building regulations, and all applications handled
e. Structural engineering, project management, and all building work included
f. Raft foundations dealt with as part of the process

Inside, the extension will create a storeroom and study room on one side, with the back opened up and a brand-new L-shaped kitchen and diner.

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

πŸ“ž Message us today to start planning your extension.

06/10/2026

Site Visit: Full Home Refurbishment

Take a look at what's happening on site as this full refurb takes shape.
What's happening on site:
1. Wall being knocked out, with a beam going across
2. Floor levelled with concrete and screed finish
3. Ceiling coming down, walls skimmed ready for decoration
4. Light fitting relocated and centralised for the chandelier
5. Bathroom wall coming out to open up the space

Full skim finish throughout the house, bringing the whole property together with a fresh, modern feel.

πŸ“ž Message J M A Group today to start planning your refurbishment.

03/10/2026

Another construction project managed by our team. This homeowner had un-used garage space, which was remodeled into a home-gym.

If you've got a garage that you'd like converting into a functional space such as a gym, spa, home office, bedroom, playroom or even a mancave, message us to book your design consultation.

01/10/2026

Going Over Budget? Here's How to Avoid It

Budget overruns are one of the biggest worries for homeowners planning a renovation β€” but they're avoidable if you know what to look out for.

πŸ‘‡ Comment "BUDGET" and we'll send you our free guide: "How to Avoid Going Over Budget on Your Renovation"

Inside, you'll find:
1. Work with a company that handles design, management, and build all together
2. Get a lump sum price β€” all-inclusive, with no hidden extras
3. Watch out for builders who quote low, then add costs once they start digging or ripping things out
4. If you're going it alone, keep a 15% contingency for unexpected surprises
5. Or work with a company like us, where the lump sum price means we take on that risk, not you

Lump sum pricing and stage payments are the best way to keep your project on budget β€” with full transparency from start to finish.

πŸ“ž Message J M A Group today for an honest, all-inclusive quote on your project

28/09/2026

Ground Floor Transformation: Creating Two New Bedrooms

This customer is transforming their ground floor to add two new bedrooms β€” taking the property to a total of four bedrooms. Here's what's included.

What's included in this all-inclusive project:
1. All engineering, planning, and building regulations
2. Severn Trent water applications and drainage relocations
3. Party wall agreements
4. Existing structure taken out, with a new partition creating two separate bedrooms downstairs
5. Steel beam installation
6. New doorway and flat fibreglass roof, with a patio door and kitchen window
7. New L-shaped kitchen
8. New bathroom
9. All electrics and plumbing included
10. Boarding, plastering, and a painting finish in standard white or magnolia
11. Laminate flooring with matching skirtings

One of the new rooms will be turned into a sensory room, tailored for the family's youngest son who has autism.

We always give our customers all-inclusive quotes β€” no hidden costs

πŸ“ž Message J M A Group today

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

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