A patio is a paved outdoor area next to the house or in the garden, laid in porcelain, natural stone or concrete slabs on a compacted sub-base and mortar bed, with falls that direct rainwater away from the house.
We offer a new patio across London, and Harrow is one of the places we cover, along with nearby Wealdstone, Brent and Wembley. Before anything is agreed we visit, check the existing structure and talk through your options. You then receive a written quote setting out the full scope; for most homes in London it sits within £3,200–£7,200 including VAT.
- Guide price
- £3,200–£7,200 inc VAT
- Time on site
- 3–7 days on site
- Postcodes
- HA1, HA2, HA3, HA5 and HA7
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
What should you budget for a new patio in Harrow?
The costs listed here are typical for a new patio around Harrow and include VAT. They reflect labour and material costs in London, about 30% above the national guide, giving a range of £3,200–£7,200. Exact pricing depends on your home, so we only fix it once a free site survey is done.
| Type of job | What it usually involves | Guide in Harrow |
|---|---|---|
| Small patio or path | Around 10m² of concrete slabs or a garden path. | £1,300–£3,200 |
| Typical 20m² patio | Sandstone or porcelain on a full sub-base with jointing and edging. | £3,200–£7,200 |
| Large or multi-level patio | Bigger areas, steps, retaining walls or premium stone. | £7,200–£15,500 |
Your price depends mostly on:
- Patio area and the amount of excavation
- Slab material, size and laying pattern
- Drainage needed to keep water away from the house
- Access for materials and removing spoil
Scope of the work
- Survey of levels, damp-proof course, drainage and access
- Excavation and removal of turf, soil or old paving
- Compacted MOT Type 1 sub-base
- Primer on porcelain slabs for a strong bond
- Jointing with mortar or a brush-in compound
- Site cleared, waste removed and paving cleaned
Local housing and a new patio
London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.
London Clay shrinks and swells with the seasons, and street trees close to houses can contribute to movement, which affects foundation design.
None of this holds for every street in Harrow, which is why we look at your actual house before pricing a new patio rather than assuming from its age alone.
Do you need permission in Harrow?
Homes in Harrow come under the regulations for England, summarised below. We don't rely on general rules alone: we confirm the position for your address with the council before a quote goes out.
A ground-level patio in a back garden does not usually need planning permission in England. Raised decks or platforms more than 30 cm high do.
Building Regulations do not normally apply to patios, but levels must stay below the damp-proof course and drain away from the house.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
From survey to handover
A visit to your home
It starts with a survey at the property, free of charge. We check condition, access and services, ask how you want the finished result to look, and answer any questions you have about a new patio.
Quote in writing
We turn the survey notes into a written quote. The price is fixed for the specification we agree, and the document sets out materials, scope and payment stages in plain language.
Getting ready
Preparation matters as much as the build. We agree access, parking and working hours with you, order materials in good time, and confirm any permissions so the job isn't held up once it starts.
Build and hand over
The job proceeds in the order set out in the programme, with dust and debris kept under control. Finally we tidy away, inspect the work together and pass the finished project over to you with its paperwork.
Working with SK Home Improvements
Patios and paving in Harrow: questions
Is porcelain or sandstone better for a patio?
Porcelain is dense, stain-resistant and stays looking clean with little care, making it a good choice if you want a modern, low-maintenance patio. Indian sandstone has natural colour variation and a softer, traditional look, and costs a little less, but it can stain and weather over time and benefits from sealing. Both make durable patios when properly laid. We bring samples to the survey.
Which postcodes in Harrow do you cover?
We cover HA1, HA2, HA3 and HA5, along with the rest of London. If your postcode is not listed, get in touch anyway: our coverage is UK-wide, and we can usually arrange a survey wherever you live. Enter your postcode in the guide-price tool or contact form and we will confirm.
How long does it take to lay a patio?
Laying a typical 20m² patio takes around three to five days, from excavation and sub-base to laying, jointing and cleaning. Larger or multi-level patios with steps and walls take longer. The mortar bed needs time to set, so light foot traffic is usually fine after a day or two and furniture can go on after about a week. We confirm timings with your quote.
Do you cover Wealdstone, Brent and Wembley?
Yes. As well as Harrow, we cover Wealdstone, Brent and Wembley and the rest of London. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
Does a patio need planning permission?
Most patios do not need planning permission, but it depends on the size, height and location, your home's position, whether it is listed or in a conservation area, and which UK nation you are in. Raised patios or decking more than a small height above the ground may need permission because of overlooking. We check the position for your garden before quoting.
Also covering areas around Harrow
We cover every part of Harrow, including HA1, HA2, HA3 and HA5, and nearby Wealdstone, Brent and Wembley. Wherever you are within that patch, the survey is free and the quote comes to you in writing.