A replacement front or back door is a new door and frame, usually composite, uPVC or aluminium, made to fit your existing opening and fitted with multi-point locks and weather seals to improve security, warmth and kerb appeal.
Every house in Tonbridge is a little different, so we never price a new front or back door from a brochure. We look at the structure, access and existing finishes first, then put in writing a fixed figure for the scope we settle on. As a rough steer, homeowners in the South East should budget £1,100–£3,900 including VAT, with work typically taking Usually half a day to one day per door.
- Guide price
- £1,100–£3,900 inc VAT
- Time on site
- Usually half a day to one day per door
- Postcodes
- TN9, TN10 and TN11
- Planning rules
- England
- Local area
- Kent
- Survey
- Free, with a written quote
What should you budget for a new front or back door in Tonbridge?
These are guide costs, not quotes. For a new front or back door in Tonbridge the range is £1,100–£3,900, VAT included, reflecting prices in the South East that are about 12% above the national guide. Once we have visited for a free survey, you get a firm figure for the scope you approve.
| Type of job | What it usually involves | Guide in Tonbridge |
|---|---|---|
| uPVC back door | A standard uPVC back or side door with a half-glazed panel and multi-point lock. | £900–£1,700 |
| Composite front door | A made-to-measure composite door in your chosen colour, glass design and hardware. | £1,350–£2,800 |
| Aluminium or door with side panels | A premium aluminium door, or a composite door with one or two side panels. | £2,800–£5,600 |
The main things that change the figure:
- Door material: uPVC, composite or aluminium
- Side panels, fanlights and the amount of glass
- Lock, cylinder and hardware specification
- Colour, including different colours inside and out
What do you get?
- Measured survey of the opening, threshold and frame condition
- Made-to-measure door and frame in your chosen colour and design
- Multi-point locking with anti-snap cylinders and matching handles
- Glazing panels, side panels or fanlights where specified
- Low threshold options for level or easier access
- Weather seals, sealant and internal trims finished neatly
Homes in Kent
Kent's older buildings include oast houses, weatherboarded cottages, Wealden timber-framed houses and Kentish ragstone walls. Medway towns have long rows of Victorian terraces, Margate and Ramsgate have Regency and Victorian seafronts, and Ashford, Maidstone and Dartford have seen large new estates alongside interwar and post-war housing.
One of England's sunnier, drier counties, but Thanet and the coast are windy, and Weald and London Clay soils can shrink in summer.
If your house in Tonbridge fits one of these patterns, it helps us anticipate what a new front or back door will involve, though we always confirm the details on site.
Planning and building rules in Tonbridge
The notes below cover England, which is where Tonbridge sits. Rules change and every property is different, so we speak to the council before pricing your job.
Replacing windows and doors on a house is usually permitted development in England when the new ones look broadly similar to the old. Flats, listed buildings and homes covered by an Article 4 direction can need consent, and conservation areas may limit materials or styles.
Replacement windows and external doors must meet Building Regulations for energy efficiency, ventilation and, on upper floors, escape. The work is either self-certified by an installer registered with a competent person scheme or signed off by building control.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
How does the job run?
We look at the job
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 front or back door.
Quote in writing
Next you receive a written quote with a fixed price for the agreed specification. It lists what is included, what is not, and how payments are staged, so you can compare it properly.
Booking the work
Next comes planning the work itself. We set a start date that suits you, line up the right trades, and make sure any approvals for a new front or back door are in place before the first day on site.
On site to finish
Our trades complete a new front or back door while your point of contact keeps you updated. When everything is finished, we clear the site, take away waste and go through the result with you before handover.
Working with SK Home Improvements
Frequently asked questions
Do I need planning permission in Tonbridge?
It depends on the work, the size of the project, your property type and whether the building is listed or in a conservation area. Tonbridge is in England, so England's rules apply. Many smaller jobs need no planning application, but some still need building control approval. We check what applies to your address before quoting.
Is the price fixed?
Yes, for the specification we agree. Your written quote sets out exactly what is included at a fixed price. It only changes if you ask for something different, or if a problem the survey could not reasonably reveal later needs extra work. In either case we explain the change and confirm it in writing before going ahead.
Can I have a low threshold for wheelchair or pushchair access?
A low threshold is a flat or very shallow sill that makes a doorway easier to cross with a wheelchair, walking frame or pushchair. Most composite, uPVC and aluminium doors can be supplied with one. The outside ground level and drainage need checking, because a low threshold must still keep rainwater out. We look at this during the survey and suggest a channel drain or small ramp if needed.
How secure are modern doors?
Modern external doors are far more secure than older designs because they lock at several points along the frame, not just at the handle. We fit anti-snap cylinders, which resist a common method of forced entry, in reinforced frames. Laminated or toughened glass panels add further protection. For extra peace of mind you can add a door chain, a viewer or a smart lock, which we can include in your quote.
How do I look after a composite or uPVC door?
Looking after a composite or uPVC door is mostly a matter of regular cleaning with warm soapy water and a soft cloth. Avoid solvents and abrasive pads, which can dull the finish. Once or twice a year, lightly oil the lock mechanism and the moving parts along the edge of the door, and check the seals. If the door starts to catch, the hinges can usually be adjusted easily.
Nearby towns
Tonbridge and its TN9, TN10 and TN11 postcodes are part of our coverage. Homeowners in Tunbridge Wells, Sevenoaks and Crowborough can also book a free survey with us and receive a written price for their job.

