A garage full of boxes, cracked plaster, tired floors and doors that stick: not every job needs a full renovation. The right home improvements fix what bothers you every day and turn space you already own into rooms you actually use.
A garage conversion typically costs £8,000 to £45,000, with an average of about £14,500, and most take 2 to 4 weeks (MyJobQuote garage conversion guide, July 2026). Smaller jobs cost far less: skimming a room typically costs £450 to £650 and takes about a day (MyJobQuote, September 2026).
5K Construction has more than 10 years of building experience and 500+ completed projects across Wolverhampton and the West Midlands. Our home improvement services cover garage conversions, plastering and rendering, flooring installation, joinery and internal doors, and painting and decorating.
These five services cover the home improvement projects most families need between the big building jobs, from a converted garage to a freshly decorated hallway.
A garage conversion turns an underused garage into a bedroom, home office, playroom or utility space without building an extension. It typically costs £8,000 to £45,000, with integral single garages averaging £10,000 to £14,000, and usually takes 2 to 4 weeks (MyJobQuote, July 2026).
Plastering gives walls and ceilings a smooth finish ready for decorating, from a skim coat over sound plaster to a full replaster of cracked walls. Rendering protects and refreshes the outside. Skimming a room typically costs £450 to £650, and rendering a three-bedroom semi £4,200 to £5,500 (MyJobQuote, 2026).
Flooring installation covers laminate, LVT, engineered wood, solid wood and carpet, laid on a level, properly prepared subfloor. Fitted prices range from £22 per square metre for laminate to £190 for solid wood, and most rooms take 1 to 5 days (MyJobQuote, September 2026).
Joinery covers internal doors, door frames, architrave, skirting and fitted storage. A hollow internal door typically costs £120 to £190 fitted, a solid oak door £250 to £530 and an FD30 fire door £210 to £470 (BookaBuilderUK, 2026).
Painting and decorating is the finish that makes every other job look right: filling, sanding, priming, then emulsion on walls and ceilings and a durable finish on woodwork. A full interior repaint of a three-bedroom house typically costs £3,000 to £7,000 and takes 1 to 2 weeks (BookaBuilderUK, 2026).
Plan home improvements around the problem that costs you most in daily life or would put a buyer off, then fix what the next job depends on. Plaster before paint, subfloor before flooring, and doors before the final coat of decoration.
| Your problem | Usually the best fix | Typical cost |
|---|---|---|
| Not enough rooms, but a garage you never park in | Garage conversion | £8,000 to £45,000 |
| Cracked, uneven or blown plaster | Full replaster or skim coat | £450 to £1,150 per room |
| Worn, stained or creaking floors | Flooring installation on a prepared subfloor | £22 to £190 per m² fitted |
| Doors that stick, drop or look dated | New internal doors with matching architrave | £120 to £530 per door fitted |
| Tired rooms after other work | Painting and decorating | £300 to £700 per room, walls and ceilings |
| Weathered or patchy outside walls | Rendering | £4,200 to £5,500 for a three-bedroom semi |
Sources: MyJobQuote garage conversion, plastering, flooring and rendering guides (2026); BookaBuilderUK internal doors and decorating guides (2026).
MyJobQuote estimates that a well-planned garage conversion can add 10% to 20% to a home's value (July 2026). For more space than a garage can give, research cited by the FMB found that extensions and loft conversions can add up to 24%; see our Loft Conversions and House Extensions guides. Plastering, flooring and decorating are less about adding value and more about making sure a buyer does not price in the cost of doing them.
Most home improvements cost between a few hundred pounds for a single room and £45,000 for a large garage conversion. The tables below give typical 2026 prices so you can set a realistic budget before you ask for a written quote.
| Job | Typical cost | Typical time |
|---|---|---|
| Garage conversion, integral single | £10,000 to £14,000 | 2 to 4 weeks |
| Garage conversion, detached single | £20,000 to £31,000 | 2 to 4 weeks; complex jobs 6 to 8 |
| Skim a room | £450 to £650 | About 1 day |
| Plaster a large room | £850 to £1,150 | 2 to 3 days |
| Render a three-bedroom semi | £4,200 to £5,500 | 6 to 9 days |
| Laminate, fitted | £22 to £65 per m² | 1 to 5 days |
| Engineered wood, fitted | £60 to £135 per m² | 1 to 5 days |
| Internal doors, three-bedroom house | £1,200 to £3,000 | 1 to 2 hours per standard door |
| Repaint a room, walls and ceilings | £300 to £700 | 1 to 2 days |
| Full interior repaint, three-bedroom house | £3,000 to £7,000 | 1 to 2 weeks |
Sources: MyJobQuote garage conversion, plastering, rendering and flooring guides, 2026; BookaBuilderUK internal doors and decorating guides, 2026.
| Trade | Day rate (average) |
|---|---|
| Plasterer | £200 to £250 (£225) |
| Carpenter | £200 to £250 (£225) |
| Tiler | £200 to £250 (£225) |
| General builder | £200 to £250 (£225) |
| Painter and decorator | £150 to £250 (£200) |
| Electrician | £250 to £400 (£325) |
Source: Checkatrade, June 2026. On small jobs, labour and travel are a large share of the price, so combining several jobs into one visit often costs less than booking them separately.
VAT: building work on an existing home is charged at the standard 20% rate unless the contractor is below the VAT registration threshold, so check whether each quote includes it (Homebuilding & Renovating, February 2026). Professionally installed insulation is zero-rated until 31 March 2027 (FMB, June 2026); ask your builder whether it applies to your job.
Among home improvements, a garage conversion is one of the quickest ways to add a habitable room, because the walls, roof and foundations are already there. What turns a cold garage into a proper room is the work you cannot see: insulation, a new wall where the door was, ventilation and a safe way out in a fire.
| Garage | Typical cost | Per m² |
|---|---|---|
| Integral, single | £10,000 to £14,000 | £450 to £750 |
| Attached, single | £10,000 to £20,000 | £805 to £1,100 |
| Detached, single | £20,000 to £31,000 | £1,100 to £1,700 |
| Detached, double | £20,500 to £45,000 |
By use, a single garage converted to a home office typically costs £8,000 to £25,000, a bedroom £10,000 to £30,000 and a bedroom with en-suite £15,000 to £45,000. Building control fees usually run £300 to £1,200. Source: MyJobQuote, July 2026.
Often not. Many garage conversions fall under permitted development, but check with the council first (East Suffolk Council building control), because some areas, including conservation areas, need an application (MyJobQuote).
Converting a garage into habitable space normally requires building regulations approval (Planning Portal). The main checks are:
Source: East Suffolk Council building control and IET.
A skim coat is right when the existing plaster is sound and only the surface is rough. A full replaster is the better choice when walls are cracked, uneven or the plaster has come away from the wall (MyJobQuote, September 2026).
| Job | Typical cost | Time |
|---|---|---|
| Skim coat over plasterboard | £15 to £25 per m² | |
| Full replaster, two-coat | £30 to £40 per m² | |
| Small room | £450 to £650 | 1 day |
| Medium room | £600 to £850 | 1 to 2 days |
| Large room | £850 to £1,150 | 2 to 3 days |
| Average ceiling | About £390 | |
| Plasterer's day rate | £180 to £250 |
Source: MyJobQuote plastering guide, September 2026.
The drying time depends on the job: allow a week or two for a skim coat, about 4 weeks for new plaster, and up to a month for lime plaster (MyJobQuote). The first coat on new plaster should be a mist coat of thinned emulsion, so the paint bonds instead of peeling.
| Render | Typical materials cost per m² |
|---|---|
| Cement render | £15 to £20 |
| Lime render | £25 to £30 |
| Pebbledash or roughcast | £35 to £45 |
| Acrylic render | £40 to £50 |
| Monocouche render | £45 to £55 |
| Silicone render | About £50 |
Rendering a whole three-bedroom semi typically costs £4,200 to £5,500 and takes 6 to 9 days (MyJobQuote, October 2026). On an older solid-wall house, a breathable lime render avoids trapping moisture in the wall (SPAB).
The best floor depends on the room: water resistance matters in kitchens and bathrooms, warmth and sound in bedrooms, and durability in hallways. Fitted prices range from £20 per square metre for budget carpet to £190 for solid wood, and most rooms take 1 to 5 days (MyJobQuote, September 2026).
| Flooring | Fitted cost per m² | Strengths | Watch-outs | Best rooms |
|---|---|---|---|---|
| Carpet | £20 to £76 | Warm underfoot, good for soundproofing | Budget carpets stain more easily | Bedrooms, stairs, lounges |
| Laminate | £22 to £65 | Cost-effective and quick to lay | Less durable than wood; can be damaged by moisture | Lounges, bedrooms, hallways |
| LVT (luxury vinyl tile) | £40 to £100 | Strong, durable, water and stain resistant | Damaged planks can be hard to repair | Kitchens, bathrooms, hallways |
| Engineered wood | £60 to £135 | Can last 30 years or more and be sanded and refinished | Not waterproof; costs more than most options | Living rooms, dining rooms |
| Solid wood | £85 to £190 | Lasts decades and can be sanded many times | Scratches and dents; not suitable for kitchens or bathrooms | Living rooms, period homes |
Source: MyJobQuote new flooring guide, September 2026.
New internal doors, architrave and skirting are home improvements that change how a whole house looks for a modest outlay. In a three-bedroom house with 6 to 10 doors, replacing them typically costs £1,200 to £3,000 (BookaBuilderUK, 2026).
| Door | Supply | Labour | Fitted total |
|---|---|---|---|
| Hollow moulded door | £35 to £70 | £70 to £120 | £120 to £190 |
| Solid core door | £70 to £150 | £80 to £140 | £150 to £290 |
| Solid oak or hardwood door | £150 to £350 | £100 to £180 | £250 to £530 |
| FD30 fire door | £90 to £250 | £120 to £220 | £210 to £470 |
Source: BookaBuilderUK internal doors guide, 2026. A standard door takes an experienced carpenter 1 to 2 hours to hang; a fire door 2 to 4 hours.
In a three-storey house, including one with a loft conversion, Approved Document B applies to the doors onto the stairs, and fire doors should be installed to BS 8214 (BookaBuilderUK). An FD30 door gives 30 minutes of fire resistance, but only with the right frame, hinges, gaps and seals. If you are replacing doors in a converted loft house, keep the fire doors as fire doors.
Most of a good paint finish is preparation: filling cracks, sanding, cleaning and priming before the first coat goes on. Skip it and the decorating looks tired far sooner.
| Job | Typical cost | Typical time |
|---|---|---|
| Ceiling only | £150 to £400 per room | Half a day to 1 day |
| Single room, walls and ceilings | £300 to £700 | 1 to 2 days |
| Small bedroom, including skirting and one door | £450 to £750 | 1 to 2 days |
| Living room with woodwork | £700 to £1,300 | 2 to 4 days |
| One wallpapered feature wall | £150 to £350 | Half a day to 1 day |
| Full interior, three-bedroom house | £3,000 to £7,000 | 1 to 2 weeks |
| Exterior, semi-detached house | £1,500 to £3,000 | 3 days to 2 weeks |
Source: BookaBuilderUK painter and decorator guide, 2026. Scaffolding for exterior work can add £500 to £2,000.
Most smaller home improvements, such as plastering, flooring, internal doors and decorating, need no planning permission or building regulations approval. The exceptions are mainly garage conversions, new electrical circuits, external walls and listed buildings.
| Work | What usually applies | Source |
|---|---|---|
| Garage conversion into habitable space | Building regulations approval; often permitted development for planning, but check with the council | Planning Portal, East Suffolk Council |
| New circuits, consumer units or electrics in bathrooms | Notifiable under Part P; certified through a competent person scheme or building control | IET |
| Rendering a house | In most cases in England no planning permission if the finish is similar to the existing one; permission needed in conservation areas and some protected areas | MyJobQuote, October 2026 |
| Re-covering a whole external wall | Part L may apply, with insulation upgraded where cost effective | East Suffolk Council building control |
| Replacing a garage door with a window | Building regulations apply to all replacement glazing; a registered installer issues a certificate | Planning Portal |
| Internal doors in a three-storey house | Approved Document B applies; fire doors installed to BS 8214 | BookaBuilderUK |
| Listed buildings | Listed building consent for alterations that affect the building's character, inside or out | City of Wolverhampton Council |
| Textured ceilings and old floor tiles | Can contain asbestos in buildings built before 2000; test before disturbing | HSE |
Keep the building control completion certificate for a garage conversion and the electrical certificate for any new circuits, because buyers' solicitors ask for them.
Booking home improvements such as plastering, doors, flooring and decorating as separate jobs means four trades, four start dates and four lots of dust. Planned together, each trade follows the last in the right order, and nothing finished gets damaged by the next job.
Home improvements go wrong in predictable ways, usually because something was done in the wrong order or a rule was missed.
| Job | Typical time |
|---|---|
| Garage conversion | 2 to 4 weeks; complex projects 6 to 8 weeks |
| Plastering a medium room | 1 to 2 days |
| Rendering a three-bedroom semi | 6 to 9 days |
| New flooring | 1 to 5 days |
| Hanging a standard internal door | 1 to 2 hours |
| Full interior repaint, three-bedroom house | 1 to 2 weeks |
Sources: MyJobQuote (2026) and BookaBuilderUK (2026), as cited in the sections above.
Small house improvements deserve the same care as big building jobs, and the best home improvement builders treat them that way. This is what you get with 5K Construction.
10+ years and 500+ projects.Garage conversions, renovations, extensions, lofts, kitchens and bathrooms across Wolverhampton and the West Midlands.
Builders and finishers in one team.The same team that converts a garage can plaster, hang the doors, lay the floor and decorate it.
Work done in the right order.Electrics before plaster, plaster before paint, paint before flooring.
Building regulations handled.Garage conversions are taken through building control, with the certificate handed to you.
A clear written quote.Labour, materials and VAT set out in writing, so you can compare like for like.
Local and easy to reach.Based at 40A Oaklands Rd, Wolverhampton WV3 0DS, and open seven days a week.
Accountable.Our insurance and trade accreditations and our complaints procedure are published in full. Find out more about our Wolverhampton building company.
A garage conversion typically costs £8,000 to £45,000, with an average of about £14,500, according to MyJobQuote's July 2026 guide. An integral single garage usually costs £10,000 to £14,000, while a detached single garage costs £20,000 to £31,000. Adding an en-suite bedroom pushes the cost towards the top of the range.
Often not, because many garage conversions fall under permitted development. Some areas, including conservation areas, need a planning application, so check with your council first. Converting a garage into a habitable room does normally need building regulations approval, covering the foundations, insulation, ventilation, fire safety and any new electrical circuits.
Plastering a small room typically costs £450 to £650, a medium room £600 to £850 and a large room £850 to £1,150, according to MyJobQuote's September 2026 guide. A skim coat costs about £15 to £25 per square metre, and a full two-coat replaster about £30 to £40.
Allow a week or two for a skim coat, about 4 weeks for new plaster, and up to a month for lime plaster. When the plaster is evenly pale and dry, apply a mist coat of thinned emulsion first, so the following coats bond properly instead of peeling or blistering.
It depends on the room. LVT is strong, durable and water resistant, which suits kitchens, bathrooms and hallways. Carpet is warm and quiet for bedrooms. Engineered wood can last 30 years or more and be refinished. Laminate is a cost-effective choice at £22 to £65 per square metre fitted.
A hollow internal door typically costs £120 to £190 fitted, a solid core door £150 to £290, and a solid oak door £250 to £530. An FD30 fire door costs £210 to £470. Replacing all the doors in a three-bedroom house usually costs £1,200 to £3,000, according to BookaBuilderUK.
In most cases in England, no, as long as the new render is similar in appearance to the existing finish. Permission is needed in conservation areas and some other protected areas, and listed buildings need listed building consent. Re-covering a whole external wall can also bring in Part L insulation requirements.
Adding space usually adds the most. MyJobQuote estimates a well-planned garage conversion can add 10% to 20% to a home's value, and research cited by the FMB found extensions and loft conversions can add up to 24%. Plastering, flooring and decorating mainly stop buyers pricing in work to be done.
Repainting the walls and ceilings of a single room typically costs £300 to £700 and takes 1 to 2 days. A full interior repaint of a three-bedroom house costs about £3,000 to £7,000 and takes 1 to 2 weeks, while exterior painting of a semi-detached house costs about £1,500 to £3,000.
Before and after photos from real homes show what a converted garage, new floors or a fresh finish can do.
We carry out home improvements from our Wolverhampton base and across the towns below.
Tell us which home improvements you have in mind, from one room to a whole garage. Book a site survey and we will look at the space, talk through the options and follow up with a written quote.
