
Mastic sealant contractors in Ower
Work needed on a mastic joint in Ower? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Worn sealant at communal door frames
- Window mastic that has split and shrunk
- Water getting in round frames after rain
Mastic sealing for Ower sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in Ower, done properly
Owners and agents usually inherit a building’s mastic rather than choose it, and it ages quietly: it sits round windows and doors, along external joints and through communal areas. When it hardens, splits or pulls away, water and draughts follow along with complaints. We work on external wall and movement joints, communal entrances and stairwells and shopfronts below residential blocks, and what we are called in for most is no planned programme for sealant and worn sealant at communal door frames. Searching for sealant specialists in Ower? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Around smaller places like Ower, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
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
- Ower (SO51)
- Region
- Hampshire
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
When to call us in Ower
Sunlight and weather break mastic down over time. The surface chalks, the body stiffens and cracks appear most of all on the sunniest and most exposed elevations.
Look out for the following:
- Mastic failing across several blocks on an estate
- Movement joints with sealant missing
- Draughts at frames across a block
- Communal area joints that look neglected
For owners of several units at places like Mortimer Trading Estate, less than half a mile to the west of Ower, one programme can deal with frame and external mastic across the lot.
Comparing quotes
- Is the sealant right for the movement and the substrate?
- Their public liability cover
- How joint depth will be controlled
- The terms of the workmanship guarantee
Honest limits
We check first that sealant really is the fix. It won’t put right:
- Water coming in from the roof or rainwater goods
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Frames that are rotten, warped or broken
Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly before you book.
What we seal
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
When to bring in a specialist
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Our process
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, and the work usually takes one or more days per building, depending on the joint lengths and the access. For work around Ower, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
What we need from you
- Flag any permit to work we’ll need
- Arrange parking or a loading space
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or email us.
Advice
Common questions from Ower clients
Will you take on a block within reach of Totton station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we will give a fixed quote.
Is Mortimer Trading Estate, near Ower, within your area?
Yes. Our area takes in Ower and its surroundings, with estates and business parks such as Mortimer Trading Estate included. Send details of the unit and the work through our quote form for a quick quote.
Do you work for managing agents and housing associations?
Yes, that’s exactly who this service is for. Buildings are scheduled in turn with dates agreed in advance.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Can you reseal a whole block or estate?
Block-wide and estate programmes are common. The quote can be split however suits your budgeting.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Looking after the joints
To get the most from the new sealant:
- Encourage occupiers to report problems at frames
- Check the asbestos register before any old mastic is disturbed
- Plan resealing building by building rather than complaint by complaint
- Log resealing dates block by block
Keep bins, bikes and deliveries away from low-level joints where you can. Damage at low level is the most common reason communal joints fail early.
The longer failed joints are left, the more likely the substrate edges break up. Once that happens, repairs come before resealing and the job grows.
Also near Ower
More services for Ower
For owners and agents in Ower
Ower sits in one of the drier corners of the country, the South East. Outside mastic still needs a dry joint and the right temperature, while the elevations that take the most sun tend to show hardened mastic first. Ower has three care or nursing homes no more than 2 miles away. Care home owners need frame and external mastic kept sound without unsettling residents.
If you look after a block within reach of Totton station, which lies south-east of Ower, frame and balcony mastic can be renewed on one programme. With historic buildings such as Landford Manor, 4.6 miles north-west of Ower, in the wider area, owners of older properties around Ower should expect mastic to need a product that suits old masonry.
Ower is about 2 miles north-west of Totton, in Hampshire. We cover Ower and the rest of Hampshire, with the same fixed quotes and 12-month guarantee as everywhere else. Across Hampshire, 723 places are covered, including Ower. Our Southampton page has more on work in that area, about 7 miles away.
We cover the SO51 postcode districts. If your site is on Romsey Road and Salisbury Road or close by, we can quote for mastic joints. Close to Ower, our area also takes in Wigley (1 mile north), Hillstreet (1 mile east), Copythorne (1 mile south-west), Winsor (1 mile south-west) and Newbridge (2 miles west). A short drive away, we cover Winchester (12 miles north-east), Eastleigh (8 miles east), Chandler's Ford (7 miles north-east), Hedge End (10 miles east), Lymington (13 miles south) and Romsey (4 miles north-east).
Near you in Ower
The closest station to Ower is Totton station, roughly 3 miles south-east. Nearby you’ll also find Eling Experience (2.8 miles south-east) and Tatchbury Mount Hospital (1.1 miles south). Green spaces nearby include Copythorne Common.
Why deal with it now?
Failed perimeter mastic lets cold air in around frames and the windows usually get the blame. In many cases, new perimeter sealant deals with it where the frames themselves are sound. Around Ower, it’s better to renew all the failing joints at once, rather than one at a time. Send photographs of each area and we will quote for the lot.
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.
Why choose Mastic Doctor in Ower
- Workmanship guaranteed for 12 months
- Health and safety: CHAS accredited
- CSCS-carded applicators
- Constructionline member for supplier checks
See how commercial sealant jobs are priced and how we’re accredited.