Mastic and sealant price guide: typical UK costs
Guide ranges only, not quotes. These are general ranges of the kind commonly quoted in the UK, including labour and materials. They are not our prices, they are not based on jobs posted on this site, and the applicator you choose sets the real price. Larger commercial jobs are priced per job after a survey.
Bathroom and kitchen
| Job | General UK guide range | Notes |
|---|
| Bath reseal (remove old silicone, clean, reseal) | £60 to £150 | per bath |
| Shower tray or enclosure reseal | £60 to £150 | per shower |
| Full bathroom reseal (bath, basin, shower and tiles) | £120 to £300 | per bathroom |
| Kitchen worktop, sink and splashback sealant | £60 to £150 | per kitchen |
Windows and doors
| Job | General UK guide range | Notes |
|---|
| Window or door frame mastic (outside) | £25 to £60 | per window or door; a minimum charge often applies |
| Whole-house window and door mastic | £250 to £600 | typical three-bedroom house from the ground or a ladder; towers or scaffold extra |
Movement joints, floors and façades
| Job | General UK guide range | Notes |
|---|
| Expansion or movement joints (cut out and reseal) | £8 to £20 | per metre, from the ground; access equipment extra |
| Concrete floor or slab joints (clean out and fill) | £6 to £18 | per metre; semi-rigid epoxy and chemical-resistant joints cost more |
| Façade and curtain wall joints | Priced per job | after a survey; access (MEWP, scaffold or rope access) is often the largest cost |
New-build and commercial
| Job | General UK guide range | Notes |
|---|
| New-build plot mastic | Priced per plot | depends on house type, number of openings and sanitaryware |
| Commercial and industrial sealing | Priced per job | depends on the specification, quantities, access and working hours |
Guide ranges only. Prices vary by region, access, quantity and the sealant specified, and may or may not include VAT.
What pushes the price up or down
- Removing the old sealant. Most of the time on a reseal goes on cutting out and cleaning off the old silicone or mastic and any mould. Several layers take longer.
- Length and number of joints. A single bath is a short job; a house of windows, a warehouse floor or a façade is a day or more. Many applicators have a minimum charge for small jobs.
- Access. Upstairs windows and façades may need ladders, a tower, a MEWP, scaffold or rope access, which can cost more than the sealant itself.
- Condition behind the joint. Loose tiles, a moving bath, rotten frames or a crumbling joint edge need fixing first, or the new sealant will fail again.
- The sealant specified. Sanitary silicone, low-modulus silicone, polyurethane, MS polymer, polysulphide and semi-rigid epoxy all cost different amounts, and specifications on commercial jobs often name a product.
- Site conditions. Out-of-hours working, inductions, RAMS and permits on a live site add time.
- Where you are. Prices are usually higher in London and the South East.
Getting a fair price
Describe the job clearly and add photos when you post a job: applicators can then give a realistic guide price when they claim it, and you can compare up to 3 of them. Ask what is included (removal of old sealant, cleaning, backing rod, primer, colour match, access equipment) and agree the price before work starts. Our guides explain the common jobs in plain English, including how much a mastic man costs.