A realistic renovation timeline has two clocks: the time before work starts (design, consents, ordering) and the time on site. For a UK bathroom expect a few weeks on site, for a kitchen roughly one to two months, and for a whole house several months, with the pre-start runway on top. Most overruns come from stages that cannot be rushed, such as plaster drying, and from jobs done in the wrong order. If you plan the sequence first and the dates second, your schedule will hold. That is how we build the timeframe in every Scopebase plan: job by job, in order, with the drying and waiting time included.
TL;DR
- Count two clocks: the pre-start runway (design, quotes, consents, long-lead orders) and the on-site programme.
- Typical on-site ranges: bathroom 2 to 5 weeks, kitchen 4 to 10 weeks, whole house 3 to 9 months, depending on scope and who is doing the work.
- The order is fixed: strip-out, first fix, plaster and drying, second fix, kitchens and bathrooms, decoration, snagging.
- Add float. Hidden defects, trade availability and drying times are what stretch a schedule.
- For DIY jobs, work out your own hours and weekends, not a builder's weeks, and plan one job at a time.
Table of Contents
- The short answer: how long does a renovation take?
- The two clocks: before you start and on site
- The order of works, and why it cannot change
- Drying and waiting time: the hidden weeks
- Timelines by project type
- What actually causes delays
- How to build a schedule that holds
- Planning DIY jobs with Scopebase
- Our view on renovation timelines
- FAQ
- Sources
The short answer: how long does a renovation take?
It depends on scope more than anything else, and published figures vary because they measure different things. Some count only the time builders are on site, others count from the first sketch to handover.
Here are ranges from UK renovation firms and the trade press. Treat them as typical bands, not promises:
| Project | On site | Notes |
|---|---|---|
| Bathroom, refresh in existing layout | 2 to 3 weeks | Homebuilding gives this figure |
| Bathroom, full remodel | 4 to 5 weeks | New pipework, waterproofing, alterations |
| Kitchen, simple replacement | Within a month | Same source |
| Kitchen with services moved | 6 to 8 weeks | Electrical upgrades, plumbing changes |
| Whole-house renovation | 6 to 9 months | One London contractor's guide gives this for a full job |
Other contractors quote shorter figures for a standard 2 to 3 bed house, for example 3 to 6 months on site, because they assume a smaller scope or a tighter finish. The gap between 3 and 9 months is not an error. It is the difference between a tidy refresh and a job that opens up walls, moves services and adds structural work.
The two clocks: before you start and on site
Most people only plan the second clock. The first one is where schedules quietly slip.
Before anyone arrives you need a scope, drawings if the work is structural, quotes, material orders and any consents. Firms put this runway at anything from four weeks for a simple job to 16 weeks for work needing design and consents. A London renovation contractor notes that householder planning applications in England are usually decided within about eight weeks, and that councils decided 93% of them within eight weeks or an agreed extension in the quarter to March 2026. That is a quarterly statistic, so check the latest release before you rely on it.
If your work touches a wall you share with a neighbour, the Party Wall etc Act 1996 applies. The official guidance says notice must be served at least two months before the planned start for work to the party wall, and the notice is only valid for a year, so do not serve it too early either. Serve it as soon as the design is fixed, because it runs alongside the last of the drawings.
On site is the part everyone pictures. It is shorter than the whole project, and it is the part you control least once it starts, which is why the runway matters.
A useful habit: write down two dates for any project. One is when the work starts, the other is when the room is properly back in use. They are not the same date. A renovation is finished when the snag list is closed, not when the last trade leaves.
The order of works, and why it cannot change
The sequence is set by physics, not preference. Pipes and cables go inside walls before the walls are closed. Plaster has to dry before paint. Floors go down after the messy work.
A typical order for a whole-house job, with stage durations drawn from a published 11-stage order of works for a 3-bed house:
- Planning and design: 6 to 12 weeks before site.
- Strip-out: 1 to 3 weeks.
- Structure: 1 to 4 weeks.
- Weathertight envelope (roof, windows, external doors): 1 to 3 weeks.
- Damp and drainage: 1 to 3 weeks, plus drying.
- First fix (electrics, plumbing and heating behind walls): 2 to 4 weeks.
- Plastering and screeds: 1 to 2 weeks, plus 2 to 4 weeks drying.
- Second fix (sockets, switches, doors, fitted joinery): 2 to 3 weeks.
- Kitchens and bathrooms: 2 to 4 weeks.
- Flooring and decoration: 1 to 3 weeks.
- Snagging: about 1 week.
Another contractor's guide gives slightly longer bands for the same stages (first fix 3 to 5 weeks, kitchen, bathroom and tiling 3 to 6 weeks) in its order of works. Both are credible. Use the lower end for a small, empty, straightforward house and the upper end for an older one you are living in.
Where the order goes wrong
Fitting a kitchen before the rewire, or painting before plaster has dried, are classic mistakes. Forcing the plaster stage is the worst: tiles crack and paint blisters within a year, according to a contractor's explanation of sequencing. Good programmes run other work around the drying stages, because drying is the one thing you cannot speed up.
Drying and waiting time: the hidden weeks
Drying is where DIY schedules fall apart, because nothing visibly happens. Published guidance gives these rough figures:
- A fresh plaster skim needs around 4 to 6 days before paint, and a full wet-coat replaster can need up to a week per coat in a cold room, according to the order-of-works guide above.
- New screed can take 3 to 6 weeks before flooring is laid, depending on the type, and plaster drying is often 5 to 10 days at minimum depending on weather, per a trades scheduling guide.
The sensible response is to schedule other work around these gaps: first-fix in another room, ordering the kitchen, painting ceilings elsewhere. Never fill a drying gap by skipping it.
Timelines by project type
Bathroom
A refresh within the existing layout can take two to three weeks. A full remodel with new pipework and waterproofing takes closer to four or five, per Homebuilding's May 2026 guide. The sequence inside the room is strip-out, first fix, waterproofing, tiling, then fitting sanitaryware. Tile adhesive and grout need their own setting time, so allow for it.
Kitchen
A simple like-for-like replacement can be done within a month. Once you move services or upgrade electrics, six to eight weeks is more typical. The long-lead item is nearly always the units and worktop, so order early. Decoration and flooring slot in after plastering and before the units go in, depending on your fitter.
Whole house, loft or extension
These run into months and usually need design, consents and party wall steps. One contractor gives 10 to 14 weeks on site for a loft conversion and 14 to 20 weeks for an extension, with an extension taking five to seven months from decision to moving in when planning and party wall work are included. An architect writing about single-storey extensions puts the whole process nearer a year where planning permission and party wall agreements are needed, with the build itself taking three to four months. If your project is in this bracket, you will want a professional programme from your builder. The rest of this article applies to the stages inside it.
What actually causes delays
Three things come up repeatedly.
Hidden defects. Unexpected pipework in walls, notched joists, poor electrics and uneven floors are named by Homebuilding as among the biggest causes of delay. Each adds a day or two, but they accumulate through knock-on effects.
Trade availability and sequencing. The same source notes that a two-day wait for one trade can easily become a week. Everyone downstream moves back.
Late decisions. Tiles, paint and light fittings chosen at the last minute stall finishing work. Choose them while the plasterer is still working.
Living in the house adds time too: one contractor reports that staying put through works typically adds 30 to 50% to the programme on services work. And older houses hold more surprises. A refurbishment guide suggests setting aside 10 to 15% contingency for newer properties and 15 to 25% for older ones, since opening walls in Victorian or Edwardian homes often reveals old wiring, lead pipework, rotten joists or damp.
Electrical and gas work in a home has legal and safety requirements, so for rewires, consumer unit changes and gas appliances, book a qualified electrician or Gas Safe registered engineer and build their lead time into your schedule.
How to build a schedule that holds
A schedule is a list of jobs in order, each with a duration, a dependency and a lead time. Here is a routine that works for a room or a whole house.
- List every job. Strip-out, first fix, plaster, second fix, tiling, flooring, decorating, snagging. Include the dull ones: skip hire, protecting floors, waste removal.
- Put them in order. Anything behind a wall comes before the wall is closed. Messy work comes before clean work. Floors and decoration come last.
- Give each job a realistic duration. Use the ranges above, pick the upper end if you are doing it yourself, and add your own working hours. A professional's three days can be your three weekends.
- Add drying and setting time as separate lines. They are jobs with no labour but real duration.
- Mark lead times. Anything ordered to size or from a supplier with a wait goes on the schedule before the job that needs it.
- Add float. Leave slack between key stages and have a backup for any single point of failure, such as one tradesperson or one supplier. Pad the end date. One contractor advises mentally adding at least 30% when a builder quotes a duration.
- Choose the season. Winter, from November to February, is generally the quietest and cheapest time for indoor work such as kitchens, bathrooms and plastering, according to a home improvement savings guide. For extensions, one adviser recommends starting construction in June, July or August when the weather helps. Outdoor jobs such as fencing and decking suit drier months.
A worked example: a DIY bedroom refresh
Say you want new flooring, fresh paint and a fitted shelf wall in a bedroom, working weekends only.
- Weekend 1: clear the room, remove old flooring, repair walls, fill and sand.
- Between weekends: patched plaster or filler dries; order flooring and paint.
- Weekend 2: ceiling and walls painted, two coats, with drying between.
- Weekend 3: laminate laid after the room is clean and dry, skirting refitted.
- Weekend 4: shelves fitted and room put back.
That is four weekends, or about a month, for a job a professional might do in a week. Neither is wrong. The plan just has to be built from your hours.
Planning DIY jobs with Scopebase
If you are doing the work yourself, the question is not how long a builder takes. It is how many hours each step takes you, what you must buy and in what order. You describe the job in plain English and Scopebase gives you a plan with a materials list, cost estimates across budget ranges, a timeframe, step-by-step instructions, safety advice and a shopping list grouped by store. You can try it without creating an account.
There are dedicated planners for painting and decorating, laminate and click-vinyl flooring, wall tiling, timber stud partition walls, low timber decking, garden fencing and shelving. Other jobs get a rough guide.
If you are weighing up cost as well as time, our guides to what to do first for home energy improvements and kitchen cabinet painting costs show how we price and sequence a job. Start from the Scopebase home page and describe your first job.
Our view on renovation timelines
Most renovation timelines fail before the first day on site. People pick an end date, then try to fit the work into it. We do it the other way round: list the jobs, put them in the only order that works, add the waiting time that nobody sees, and let the date fall out at the end.
This matters most for DIY. A professional's programme assumes a full-time crew. Yours assumes evenings and weekends, a van-less trip to the store and a day lost to a missing fixing. That is why our plans give you the materials, the steps and a timeframe together, and group the shopping list by store, so the order you work in and the order you buy in match.
We built Scopebase so that you feel prepared before you start: you know what to buy, roughly what it will cost and where to begin. A schedule you trust is the cheapest tool in any project.
Scoped
FAQ
How long does a home renovation take?
A bathroom typically takes two to five weeks on site, a kitchen four to ten, and a whole house three to nine months, depending on scope. Add the time before work starts for design, quotes, consents and ordering. Quoted ranges differ because some include that runway and some do not.
What is the correct order for renovation work?
Strip-out and structural work come first, then first fix (electrics, plumbing and heating hidden in walls), then plastering and drying, second fix, kitchens and bathrooms, flooring and decoration, and finally snagging. Skipping or reordering stages is a main cause of cracked tiles, blistered paint and rework.
What delays a renovation most often?
Hidden defects found when walls and floors are opened, trade availability, late decisions on finishes and slow party wall responses. Allow float between stages and contingency in your budget, higher for older houses.
When is the best time of year to start?
Indoor work is generally cheapest and easiest to book in winter, while external work and extensions suit the drier, longer days from late spring to summer. Pick the season by the type of work, not the calendar alone.
How do I plan the timeline for a DIY project?
List every job, put them in order, estimate your own hours, add drying and ordering time as separate lines, and pad the end date. A Scopebase plan gives you the steps, materials and timeframe for the job so you can build your schedule on them.
Sources
- Homebuilding: how long does a renovation take and what can delay it
- GOV.UK: The Party Wall etc Act 1996 explanatory booklet
- Renovation durations and sequencing guide
- House renovation order of works: 11 stages
- Renovation order of works: the correct sequence
- How long a house renovation takes (London)
- Trades booking schedule for renovations
- Refurbishment process UK: step-by-step guide
- How to save money on home improvements
- House extension timings