Hampshire · England
Mastic man in Hook
Sealant work for a fast-growing Hart village, from older homes on the A30 to Holt Park, Green Hart Park and Oakwood Grange new builds.
- Fully insured
- Arbo and Everbuild sealants
- Clear quote before we start
Mastic and sealant work in Hook
Hook has grown quickly. Once a scattering of farms and coaching inns on the old London to Exeter road, it became a parish in its own right in 1955 and has expanded fast since the 1980s, to the point where many people now think of it as a town. Around 9,100 people lived here at the 2021 Census. Mr Mastic covers Hook from our base in Crawley, and much of what we do here is in homes that are still fairly new.
We reseal baths, showers, basins and kitchens, put right snagging-list sealant in new houses, and replace hardened mastic around windows and doors. Every job starts with taking the old sealant out completely. The joint is then cleaned, dried and primed where the surface needs it, so the new bead bonds properly and lasts. Before any of that, you get a clear quote.
New estates on every side of the village
The railway station arrived in 1883 and brought railway workers and commuters, and Hook has kept growing ever since. Holt Park, on the east side, was built between 2004 and 2006. To the north-east, Green Hart Park and Oakwood Grange began in 2020, and new housing is still going up. That means a large share of homes here are less than 20 years old, alongside older houses closer to the A30 and the village centre.
New builds bring their own sealant problems. As a house dries out and settles in its first year or two, joints open slightly, and builder sealant that was applied quickly often cracks around shower trays, baths and sinks. Daily use speeds that up. If yours is already lifting, our new build sealant snagging guide explains what to check and when to report it.
In the older houses, the jobs are different: thick layers of old sealant from past refits, mould that has worked under the bead, and uPVC frames whose mastic has gone stiff. Those homes need a full cut-out and reseal rather than a quick patch.

Commuter homes, settling houses and busy bathrooms
Hook sits just north of Junction 5 of the M3, with direct trains to London Waterloo and Basingstoke, so many households here are out early and back late. Showers get heavy morning use and bathrooms are often shut up during the day, which is ideal for mould on a failing seal. We use anti-fungal sanitary silicone and leave you with simple advice on ventilation and drying the joint.
On the newer estates, external mastic around windows, doors and where render meets brick is also worth checking after a few winters. A cracked joint lets rain behind the frame, so we replace it with a flexible, weatherproof sealant, using backing rod where the gap is deep.
Offices, the business park edge and landlords
Hook is home to employers including Serco and Trimble, and its position on the M3 makes it a base for offices and businesses serving the wider Basingstoke area. Staff washrooms, kitchens and showers in workplaces need regular resealing, and out-of-hours working can be arranged so facilities are not out of use during the day. Tylney Hall, a Grade II* listed park and garden nearby, gives a sense of the larger properties around the village.
Landlords and letting agents with rented homes in Hook can call on us between tenancies, and our landlord sealant page explains how we work with several properties at once.
How it works
- Call or email. Tell us what needs doing, where it is and anything about access. Photos by email help.
- Get a clear quote. We give you a clear price before any work starts, and agree a date with you.
- Preparation first. Old sealant out completely, surfaces cleaned, mould treated and the joint left dry.
- Neat new sealant. Each joint gets the sealant that suits it, laid and smoothed to a tidy finish.
- Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.
Jobs we take on in Hook
- Bathroom & kitchen resealing: Bathroom and kitchen joints taken back to a clean, dry surface and finished with fresh anti-fungal silicone that won’t lift.
- Window & door mastic: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
- Commercial & hotel sealant: Guest bathrooms, staff washrooms and kitchens in commercial buildings resealed in a planned order that keeps the site running.
- Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
- Fire-rated sealant: Gaps in fire-separating walls and floors sealed with fire-rated products, following the tested details for each one.
- External & façade joints: Split or perished joints in walls and cladding replaced with exterior sealant designed to stretch with the building.
- New-build mastic & snagging: Failed builder sealant in new homes put right, and plot mastic for developers.
- Floor & skirting joints: Movement joints in tiled and concrete floors, and skirting gaps, sealed so they stay tidy and keep dirt out.
- Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
- Glazing & conservatory sealant: Conservatory, rooflight, glass panel and shower screen joints resealed with glazing silicone.
- Gutter, fascia & soffit sealing: Dripping gutter joints and end caps, and gaps at fascias and soffits, sealed with weatherproof exterior sealant.
- Sand mastic for sash & case windows: Traditional burnt sand mastic renewed around sash and case windows and doors in stone and brick.
Choosing a mastic man in Hook
Hook is an easy run down the M3 from our side of the region, and we bring the same care we use in Crawley. Our team has 20+ years’ experience, full insurance and ARBOMaster approved applicator status, and we work with Arbo and Everbuild sealants. With 2,847+ projects behind us and a 4.9-star Google rating from more than 180 five-star reviews, you know what to expect. The price is agreed in a clear quote first, and the finished work has a one-year guarantee.
Getting around Hook
For trains, Hook station is closest to the centre. Places most people will know nearby are West Green House Agricultural Museum (1.6 miles north-east) and Odiham Castle (1.6 miles south). Closer in, we work on homes, rented flats and businesses near Hook Junior School, Robert May's School and St John the Evangelist. Nearby green spaces include The Mill Field and Tundry Hill.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“New build in Forge Wood — shower seal had failed after 16 months. Mr Mastic came out quickly, removed everything and did it properly. Perfect finish and no more leaks.”
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
“Called for a bathroom reseal and the mastic man showed up on time with all the right equipment. Brilliant attention to detail. The sealant looks perfect and they kept everything tidy.”
Areas of Hook we cover
Select your area for more local detail, or call 07833 053749 or email us with your postcode.
Towns near Hook
Your questions about mastic work in Hook
Do you cover all of Hook?
Yes. We cover the whole village, including Holt Park, Green Hart Park and Oakwood Grange, and nearby Odiham, Newnham and Basingstoke.
My Green Hart Park shower seal has cracked already. Is that normal?
It is common in new homes, as houses settle and showers get daily use. We cut out the builder sealant, prime where needed and reseal.
Should I ask the developer first?
If your home is still in its warranty period, it is worth reporting it to them. If they will not fix it, or the period has ended, we can.
I live in Holt Park. Is my sealant due for renewal?
Homes built in the mid-2000s are now around 20 years old, so original bath, shower and window sealant has often hardened or discoloured. We can check it and quote.
Can you work in an office before staff arrive?
Out-of-hours working can be arranged for commercial jobs.
Do you reseal external joints on newer houses?
Yes. We replace cracked mastic around windows, doors and render joints with flexible weatherproof sealant.
How long does a kitchen reseal take?
Most kitchens take a few hours, including removing the old sealant. We will tell you when the sink area can be used again.
Is the work guaranteed?
Yes. Every job comes with our one-year guarantee.
