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CHELSEA RENOVATION SW3 • GUIDE

House Refurbishment & Planned Maintenance

in Chelsea SW3

This guide covers house refurbishment, planned maintenance, and bathroom remodelling in Chelsea SW3 — what it costs, how long it takes, and what landlords need to know.

• Same-day quotes • Fully insured

Covering Chelsea postcodes SW3, SW10, SW1

Types of renovation we handle in SW3

Most apartment renovations we handle in SW3 fall into a few categories:

​​​

• Full flat refurbishments — stripping and rebuilding bathrooms and kitchens, new flooring throughout, full repaint. Typical for landlords between long-term tenancies or homeowners buying to renovate.


• Cosmetic refreshes — repaint, new flooring, maybe a bathroom refresh. Common for between-tenancy turnarounds where the layout is fine but everything needs freshening up.


• Specific room renovations — kitchen or bathroom only, while the rest of the flat stays untouched.

 

Our most frequent request in Chelsea is painting and decorating — high-quality repaints where the prep work matters as much as the finish coat. We also carry out bathroom renovation regularly in the mansion block flats common across SW3, and mould remediation in older properties where Victorian construction and poor ventilation create damp issues.

How much does apartment renovation cost in Chelsea SW3?

Price ranges based on our completed jobs in the area:

image_edited_edited.png

Full 1-bed flat refurbishment

Bathroom renovation

Kitchen installation

Full interior repaint (2-bed flat)

Flooring throughout (2-bed)

£9,200 - £18,700

£2,800 - £9,850

£3,500 - £9,000

£1,200 - £2,200

£1,000 - £2,400

Chelsea properties tend to sit at the higher end of these ranges, because the properties themselves often have obstacles that appear mid-work and add time: awkward layouts in converted buildings, older electrical and plumbing connections that needs updating, or a specifications that demand a higher quality finish.

How long does apartment renovation take in Chelsea SW3?

Time ranges based on our completed jobs in the area:

3-5 days

5-8 days

6-9 days

3-9 days

Cosmetic refresh - targeted repaint, flooring

Bathroom renovation

Kitchen installation

Full repaint / Full flooring

We work 7 days a week and can mobilise within 48 hours for urgent landlord jobs. Chlesea is one of our most active areas — having completed across SW6 and the surrounding SW10 and SW3 postcodes, we understand the area.

OUR WORK

Restored bathroom with green tiles clapham junction SW11

Bathroom Remake
Clapham Junction

Bathroom Remake
Clapham Junction

Installed kitchen in North Finchley N12

Full Kitchen Installation
North Finchley

Full Kitchen Installation
North Finchley

Refreshed grey landlord HMO bathroom in willesden NW10

Bathroom Refresh
Willesden

Bathroom Refresh
Willesden

Baby Room Refresh
Central London

Baby room repainted in clapham

Baby Room Refresh
Central London

Repainted flat with white walls in kensington

Flat Renovation
Central London

Flat Renovation
Central London

Repainted landlord HMO with grey walls in willesden NW10

HMO Repaint
Cricklewood

HMO Repaint
Cricklewood

Conservation areas, listed buildings & mansion block access in Chelsea

Chelsea is one of the most heavily protected boroughs in London. Almost the entire SW3 postcode sits within a conservation area, and Chelsea has one of the highest concentrations of listed buildings anywhere in the capital. This affects what you can change and how, more than in most other areas we work in.

WORTH KNOWING BEFORE YOU START - CONSERVATION AREAS

In Chelsea, a large part of the area sits inside a conservation zone, with listed buildings on every corner. Check our map to know whether either of those apply to you, and how it can impact your renovation timeline and cost.

For conservation area properties that aren't listed, the rules mostly affect anything visible from the street — windows, doors, render, even external paint colour in some cases. Internal renovation work like painting, flooring, kitchens, and bathrooms is typically unaffected, but it's worth checking if your project touches anything external before you start.

 

Mansion blocks add a further layer. Many Chelsea properties — particularly around Sloane Street and the streets off the King's Road — are mansion block flats with an active management company and service charge. These buildings often have their own rules around contractor access: permitted working hours, insurance documentation the management company wants to see before granting access, and sometimes a lift booking system for moving materials in and out. We're used to working within these constraints and will flag anything we need from you before the job starts, rather than discovering it on the day.

What usually requires a premission:

 • Window replacement or alteration

 • Front doors - replacement, colour

 • Removing or altering original internal features - fireplaces, panelling, staircases etc.

 • External painting visible from the street

 • Roofing

 • Structural wall removal

What is almost never affected:

 • Internal painting

 • Flooring

 • Kitchen installation

 • Bathroom renovation

 • Tiling

Why landlords in Chelsea use Astralis

Chelsea rental properties command some of the highest rents in London (world!) — SW6/SW3 1-bed flats regularly let for £2,500–£3,600+ per month. A void period of even two weeks while waiting for a contractor costs more than the renovation itself in lost rent.

We offer same-day quotes, fixed prices agreed upfront, and on-site start within 48 hours for urgent jobs. That's why landlords in Islington keep coming back.

A two-week void in Chelsea can cost more in lost rent than most renovation jobs. Speed matters as much as quality - we bring both.

Chelsea is one of London's most prestigious addresses, and landlords here need contractors who understand the standard expected — clean work, quality materials, and a finish that justifies premium rents. We work regularly across Chelsea, from the period conversions off the Fulham Road and the mansion blocks near Sloane Street to the streets around World's End and into South Kensington.

Can I renovate with tenants in the property?

Yes — we work on occupied properties regularly. It requires a different approach but it's entirely manageable for most types of work.

For painting and decorating we typically work room by room so tenants can still use the rest of the flat. For bathroom or kitchen renovation on an occupied property we agree a clear schedule upfront — the tenant knows exactly which days the room is out of use, so they can prepare beforehand.

What works well with tenants in:

  • Painting and decorating — room by room, minimal disruption

  • Flooring — one area at a time, usually done within a day per room

  • Patch repairs and minor works — same day, in and out

  • Bathroom renovation — manageable if the property has more than one bathroom, which is common in Hampstead

What's better done on a vacant property: full kitchen renovation, full flat refurbishment, any structural work. If your tenant is cooperative and you need to work around them, talk to us — we'll give you an honest answer about whether it's feasible before we quote.

Get a quote for your
Chelsea property.

Send us the details and we'll come back with a fixed price the same day. No site visit needed for most jobs - photos are enough.

➞ Response within an hour 7 days a week
​➞ No obligation - just a quote
➞ Fixed price agreed before the start
​➞ Covering Chelsea postcodes SW3, SW10, SW1, SW7

Deciding What Your Chelsea Property Needs

Not every property needs the same level of work. Before committing to a bigger job, it's worth understanding the difference between the three levels — and which one actually gets you the result you need.

Refresh

  • Targeted repaint

  • Minor woodwork fixes

  • Silicone and sealant touch-ups

£800-£2,200 

2-3 days

Refurbishment

  • Full repaint - usually without ceilings

  • New flooring in rooms where needed

  • Sockets and lightswitches replaced

£1,800-£4,100

3-5 days

Renovation

  • Strip out of bathroom and/or kitchen

  • New flooring throghout

  • Woodworking replaced

  • Fixtures, doors, lights replaced

£3,000-£8,000

4-14 days

If you are still unsure what you need to do to make your property look like new,

whether for yourself or for the market, please contact us.

FAQ

Common questions
about Chelsea.

Can you work with tenants still in the property?

Yes — for painting, flooring, and minor works this is straightforward. We work room by room to minimise disruption. For full bathroom or kitchen renovation on an occupied property we agree a clear schedule with the tenant upfront and stick to it.

What's the cheapest way to improve a Chelsea flat before selling/letting?

A 2-room repaint — typically a living room and bedroom — costs a few hundred pounds and makes an immediate visual difference. It's the fastest, cheapest way to present a property well without a larger investment.

Do you work weekends?

Yes. We're flexible around what works for you - weekends and bank holidays included.

Do I need to be in Chelsea for the work to happen?

Not at all. Many of our Chelsea clients hand over keys at the start and collect them at the end. You'll get daily photo updates throughout so you always know what's happening without needing to visit the site.

Which postcodes do you operate in in Chelsea?

We operate across the entire area of Chelsea, covering SW3, SW10, SW1 as well as SW7. If your one isn't listed - we still work there. Just contact us!

WHERE WE WORK

Most requested
in...

Hammersmith

W6

Fulham

SW6

Chelsea

SW3

Kensington

W8

Islington

N1

Hackney

E8

Hampstead

NW3

Willesden

NW10

Property in Chelsea
that needs work?

Send us photos and we'll have a price back to you the same day. No site visit needed for most jobs.

Response within an hour.

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