Washroom Sealing contractors in Broad Colney
Need washroom sealing in Broad Colney? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Split or peeling sealant at shower trays
- Sealant stained black around basins and showers
- Sealant laid over old silicone and now peeling
Washroom sealing for businesses in Broad Colney
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
For managing agents and facilities managers
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
How we handle washroom sealing in Broad Colney
In a busy washroom, the sealant usually gives up long before the tiles or fittings. Basin tops, urinal backs, panel joints and shower trays put it under water, chemicals and daily cleaning, and once mould grows into it, it can’t be scrubbed out. The fix is to remove it completely and reseal with sanitary silicone containing anti-mould additives. If you are dealing with urinal joints that look unhygienic and washrooms that look worn because of the sealant, we can help, on kitchens and tea points, showers, trays and wet room floors and vanity units and basins alike. Most enquiries from Broad Colney start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In and around smaller places like Broad Colney, washroom work is often in halls, pubs, primary schools, care homes and holiday accommodation. Mould gets into sealant in any washroom that doesn’t dry out, and once it’s in, the sealant is replaced.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.
- Place
- Broad Colney (AL2)
- Region
- Hertfordshire
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Aftercare for building managers
A few simple habits keep the new joints working:
- Keep extract fans working and vents clear
- Brief cleaning staff to treat joints gently
- Leave signs up until the cure time is over
- Photograph and log failed joints across the estate
We hand each area back once the silicone has had the cure time the product needs. We’ll tell you when the wet areas can be used, and it helps if signs stay up until then.
Inspectors look at whether kitchen surfaces can be kept clean. Resealing sinks, worktops and splashbacks before an inspection is a simple step.
Also near Broad Colney
Also in Broad Colney
Toilets, showers and kitchens around Broad Colney
Central London is about 17 miles from Broad Colney. Business park offices have washrooms in daily use by staff, and resealing in phases keeps facilities available. A 2-mile radius around Broad Colney takes in a number of hotels. Each has en suites, back-of-house toilets and kitchens with sealant that moulds and splits.
For a college such as Oaklands College (2.9 miles north of Broad Colney), half-term and summer give the windows for washroom work. Staff changing rooms and patient toilets at places like Kingsley Green Hospital, 0.8 miles south-west of Broad Colney, need cleanable, sound silicone. Church halls and community buildings, such as those at Church of St Peter, have kitchens and toilets used by many groups, and their sanitary sealant works hard.
Broad Colney is about 3 miles south-east of St Albans, in Hertfordshire. Looking for washroom sealing in Broad Colney? We can help. We work across 371 places in Hertfordshire, large and small. Sites around London have their own page, about 17 miles away.
Anyone looking for washroom sealing in AL2 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Just outside Broad Colney, we also work in London Colney (1 mile north), Shenleybury (1 mile south-east), Tyttenhanger (2 miles north), Sleapshyde (3 miles north-east) and Colney Heath (3 miles north-east). Nearby towns on our patch include Watford (6 miles south-west), Hemel Hempstead (7 miles west), Stevenage (14 miles north), St Albans (3 miles north-west), Welwyn Garden City (7 miles north-east) and Harpenden (7 miles north).
Near you in Broad Colney
In Broad Colney, that means premises near The White Lion pub and Samuel Ryder Academy and the streets around them. For rail, the closest station is Park Street station, about 1.9 miles north-west of the centre. Well-known places in the area include Hilfield Castle (4.5 miles south) and Radlett and District Museum (2.5 miles south). For a walk, there’s Verulamium Lake and Broad Colney Lakes.
Why act early in Broad Colney
Waiting for a holiday closure can leave failing joints in place for a long time. With phasing, the work can go ahead while most facilities stay open. One visit to deal with every failing joint makes more sense than several trips to a place like Broad Colney, rather than one at a time. Send photos of each area and we’ll quote for the lot.
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you are ready.
Why choose Mastic Doctor in Broad Colney
- Constructionline member for supplier checks
- Clear, fixed quotes
- Work carried out by CSCS-carded applicators
- One contact handling all your sites
Take a look at our cost guide and our accreditations.
Questions we are asked in Broad Colney
Can work at a site such as University of Hertfordshire fit around teaching?
Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do you take on work at healthcare sites like Kingsley Green Hospital?
Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
What do you charge?
We don’t publish prices, because every site is different. With photographs or drawings, we can give you a fixed quote.
Do you work in hospitals, clinics and care homes?
Yes. We work to your estates and infection-control requirements and any site permits, and phase the work so areas keep facilities.
Do you have public liability insurance?
Yes. We are fully insured, and the certificate can go with your quote.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How many days will you need on site?
The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.
What the job involves on each surface
Wet-room floors and floor-to-wall joints
Wet-room floors and the joints where flooring turns up the wall need to stay sound. Floor perimeters and sealant joints near drains are resealed.
Showers and trays
Shower trays move under foot and are wet all day. Tray joints are where many washroom leaks start.
Diagnose, treat, sign off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Jobs in and around smaller places like Broad Colney are normally planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We inspect each washroom and record the joints to be resealed.
- You get a fixed quote with the phasing plan.
- Old sealant is removed completely and the faces cleaned.
- Joints are degreased and dried.
- A sanitary silicone bead is laid and given a smooth tooled finish.
- Rooms reopen after the cure time.
Preparing the site
- Let building users know which areas are affected
- Make sure the joints can be reached
- Tell us what induction or permit system the site runs
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, phone 01277 525 020 or email the details over.
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When something else is needed
Sealant solves a lot, but not everything, and we are upfront when that’s the case. These need a different solution:
- Condensation from failed extract fans
- Swollen or delaminated boards behind panels or vanity tops
- Failed tanking beneath a wet-room floor or behind tiles
If in doubt, give us a call on 01277 525 020 or use the quote form and we will say what we think before you book.
Surfaces we seal
- Accessible toilets and changing rooms
- Vanity units and basins
- Kitchens and tea points
- IPS panels and cubicles
- Showers, trays and wet room floors
- Urinals and WCs