
Andover washroom sealing
Our CSCS-carded applicators take on sealing in commercial washrooms, showers, kitchens and wet areas in Andover and the surrounding area. Send details for a fixed quote.
- Open joints along basins and vanity units
- Sealant stained black around basins and showers
- Stained sealant around pans and urinals
Washroom sealing in Andover
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Washroom sealing for commercial buildings in Andover
You can’t shut every toilet in an office, school or hotel at once. Work is phased by room or by section, so staff, guests or pupils always have somewhere to go. Give us your site hours and access windows and the phasing is planned around them. We work on showers, trays and wet room floors, accessible toilets and changing rooms and vanity units and basins, and the failures we’re asked to look at most are sealant stained black around basins and showers and sealant lifting along a tray edge. One point of contact handles commercial sealant work in Andover from the first photos to the final walk-round, whether it’s one building or several.
For schools in a town such as Andover, term dates decide when the toilets and changing rooms can be resealed, while offices and care homes need phased work. Let us know your opening times and any access limits, and we’ll work to them.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

- Location
- Andover (SP10, SP11)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
FAQs: Andover
Can work at a site such as Andover College fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do hotels near Andover have to close for sealant work?
Rarely, if ever. We take a few rooms out at a time. We agree the order of rooms and the timings with you before we start.
Do you work in hospitals, clinics and care homes?
Yes, healthcare and care settings are part of our work. Tell us what records you need and we’ll confirm with the quote.
Is there a guarantee on the work?
A 12-month guarantee covers the work. It covers our workmanship rather than damage, leaks from plumbing or ventilation problems.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Do you use special sealant for toilets and showers?
An anti-mould sanitary silicone in the majority of cases. Neutral-cure grades are used where acetoxy types could mark metals, stone or mirror backings.
When is resealing likely to be due?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Swollen or delaminated boards behind panels or vanity tops
- Hollow tiles or loose panels behind the joint
- Water escaping beneath the floor rather than through a joint
If you are not sure, just call the office on 01277 525 020 or use the quote form and we will give you a straight answer.
Joints and surfaces we work on
- Kitchens and tea points
- Showers, trays and wet room floors
- IPS panels and cubicles
- Vanity units and basins
- Accessible toilets and changing rooms
- Urinals and WCs
General trades versus a specialist
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Also near Andover
Other services in Andover
Commercial washrooms in Andover
A number of hotels sit less than 2 miles from Andover. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits. Andover lies roughly 63 miles out from central London, within the office belt around the capital. Office toilets in the commuter belt are in use from first arrivals to last departures, so we work a block of facilities at a time.
For a hotel such as The Globe Hotel, under half a mile south-east of Andover, resealing en suites a few rooms at a time keeps the rest available. For a site such as Andover Hospital (Grounds) (0.6 miles north-west of Andover), sanitary joints in clinical areas need sound, cleanable sealant and a careful method. Church halls and community buildings, such as those at Church of St Mary, have kitchens and toilets used by many groups, and their sanitary sealant works hard.
Andover is about 17 miles west of Basingstoke, in Hampshire. Our applicators travel to Andover for work on washrooms and wet areas. 723 places across Hampshire fall within our area, Andover among them. Sites around Southampton have their own page, roughly 21 miles from Andover.
We cover the SP10 and SP11 postcode districts. Among the streets we cover are High Street, Goddard Square and London Road, and sites on any of them can send details for a fixed quote. Main routes into Andover include the A303 and A342. We also cover Picket Twenty (1 mile east), East Anton (1 mile north-east), Knights Enham (1 mile north), Finkley Down (2 miles north-east) and Picket Piece (2 miles east). Bigger towns within reach include Winchester (13 miles south-east), Romsey (15 miles south), Hyde (12 miles south-east), Tidworth (8 miles west), Weeke (12 miles south-east) and Kempshott (15 miles east). Andover ranks among the main centres of Hampshire, with offices, shops, schools and other public and commercial buildings, and we cover them all.
Local landmarks in Andover
Recent enquiries here include premises near The Angel Inn, Winton Community Academy and Winton Community Academy. Andover’s nearest station is Andover station, about 0.5 miles west. Well-known places in the area include Andover War Memorial Hospital (0.7 miles north-west) and Andover Museum (under half a mile east). Not far away are Anton Lakes and Mill Lake.
After the work
Regular inspection catches problems early. Specifically:
- Leave signs up until the cure time is over
- Inspect washroom sealant regularly
- Tell us about infection-control or permit rules before we quote
- Avoid scourers and harsh descalers on silicone
Include sealant joints in your planned maintenance checks. Check for mould spots, splits, lifting edges and open joints at trays, basins and urinals and photograph anything new.
Mouldy sealant only gets harder to ignore, and complaints follow. Replacing it early keeps the job to a reseal.
Leave it or put it right?
Leaving the job until a shutdown often means living with it for months. Phasing lets it happen now, with facilities kept in use. In Andover, as anywhere, the simplest time to fix a failed joint is before it leaks. After a leak, there’s drying, repairs and redecoration on top.
The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why choose Mastic Doctor in Andover
- Workmanship guaranteed for 12 months
- Fixed quotes based on photos, drawings or a visit
- Joints cleaned back to sound surfaces
- Work carried out by CSCS-carded applicators
Take a look at our cost guide and our accreditations and insurance.
What the job involves on each surface
IPS and cubicle panels
Panel systems meet walls, floors and vanity tops at sealed joints. Those joints protect the boards behind from water.
Wet-room floors and floor-to-wall joints
We seal the visible joints; we don’t install or repair waterproofing below and point it out if water appears to rise from below.
How a job runs
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. If you have more than one building in Andover, they can often be done on the same visit. Tell us when the building is open and we’ll plan to suit.
- Every room is surveyed and the failed joints listed.
- You get a fixed quote with the phasing plan.
- The whole of the old bead is removed.
- Joints are degreased and dried.
- A sanitary silicone bead is laid and given a smooth tooled finish.
- Rooms reopen after the cure time.
What we need from you
- Point out parking and an unloading spot
- Let building users know which areas are affected
- Send your site hours and access windows
Quotes
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to call 01277 525 020 or email a schedule or drawings.