Summer Houses for Sale in St Helens – Built in Our Factory
Factory-direct wooden Summer Houses manufactured by Harts Timber Sheds in St Helens.
Choose from Pent or Apex roof styles in a wide range of sizes, with different window and door options.
Free delivery. Free professional assembly. Free factory-applied basecoat.
Summer House Prices
Choose a size below to see Pent and Apex roof prices.
27 sizes to choose from
Summer House
6 x 4
(
1.8m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £579
Apex Roof Style
Two windows and one single glazed door £609
Summer House
6 x 5
(
1.8m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £609
Four windows and one single glazed door £689
Two windows and double glazed doors £659
Four windows and double glazed doors £739
Apex Roof Style
Two windows and one single glazed door £647
Four windows and one single glazed door £727
Two windows and double glazed doors £697
Four windows and double glazed doors £777
Summer House
6 x 6
(
1.8m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £629
Four windows and one single glazed door £709
Two windows and double glazed doors £679
Four windows and double glazed doors £759
Apex Roof Style
Two windows and one single glazed door £674
Four windows and one single glazed door £754
Two windows and double glazed doors £724
Four windows and double glazed doors £804
Summer House
7 x 4
(
2.1m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £609
Four windows and one single glazed door £689
Two windows and double glazed doors £659
Four windows and double glazed doors £739
Apex Roof Style
Two windows and one single glazed door £644
Four windows and one single glazed door £724
Two windows and double glazed doors £694
Four windows and double glazed doors £774
Summer House
7 x 5
(
2.1m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £629
Four windows and one single glazed door £709
Two windows and double glazed doors £679
Four windows and double glazed doors £759
Apex Roof Style
Two windows and one single glazed door £673
Four windows and one single glazed door £753
Two windows and double glazed doors £723
Four windows and double glazed doors £803
Summer House
7 x 6
(
2.1m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £659
Four windows and one single glazed door £739
Two windows and double glazed doors £709
Four windows and double glazed doors £789
Apex Roof Style
Two windows and one single glazed door £712
Four windows and one single glazed door £792
Two windows and double glazed doors £762
Four windows and double glazed doors £842
Summer House
7 x 7
(
2.1m x 2.1m )
Pent Roof Style
Two windows and one single glazed door £790
Four windows and one single glazed door £870
Two windows and double glazed doors £840
Four windows and double glazed doors £920
Apex Roof Style
Two windows and one single glazed door £851
Four windows and one single glazed door £931
Two windows and double glazed doors £901
Four windows and double glazed doors £981
Summer House
8 x 4
(
2.4m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £679
Four windows and one single glazed door £759
Two windows and double glazed doors £729
Four windows and double glazed doors £809
Apex Roof Style
Two windows and one single glazed door £719
Four windows and one single glazed door £799
Two windows and double glazed doors £769
Four windows and double glazed doors £849
Summer House
8 x 5
(
2.4m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £699
Four windows and one single glazed door £779
Two windows and double glazed doors £749
Four windows and double glazed doors £829
Apex Roof Style
Two windows and one single glazed door £749
Four windows and one single glazed door £829
Two windows and double glazed doors £799
Four windows and double glazed doors £879
Summer House
8 x 6
(
2.4m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £719
Four windows and one single glazed door £799
Two windows and double glazed doors £769
Four windows and double glazed doors £849
Apex Roof Style
Two windows and one single glazed door £779
Four windows and one single glazed door £859
Two windows and double glazed doors £829
Four windows and double glazed doors £909
Summer House
8 x 7
(
2.4m x 2.1m )
Pent Roof Style
Two windows and one single glazed door £880
Four windows and one single glazed door £960
Two windows and double glazed doors £930
Four windows and double glazed doors £1,010
Apex Roof Style
Two windows and one single glazed door £950
Four windows and one single glazed door £1,030
Two windows and double glazed doors £1,000
Four windows and double glazed doors £1,080
Summer House
8 x 8
(
2.4m x 2.4m )
Pent Roof Style
Two windows and one single glazed door £950
Four windows and one single glazed door £1,030
Two windows and double glazed doors £1,000
Four windows and double glazed doors £1,080
Apex Roof Style
Two windows and one single glazed door £1,030
Four windows and one single glazed door £1,110
Two windows and double glazed doors £1,080
Four windows and double glazed doors £1,160
Summer House
9 x 4
(
2.7m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £729
Four windows and one single glazed door £809
Two windows and double glazed doors £779
Four windows and double glazed doors £859
Apex Roof Style
Two windows and one single glazed door £774
Four windows and one single glazed door £854
Two windows and double glazed doors £824
Four windows and double glazed doors £904
Summer House
9 x 5
(
2.7m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £749
Four windows and one single glazed door £829
Two windows and double glazed doors £799
Four windows and double glazed doors £879
Apex Roof Style
Two windows and one single glazed door £805
Four windows and one single glazed door £885
Two windows and double glazed doors £855
Four windows and double glazed doors £935
Summer House
9 x 6
(
2.7m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £769
Four windows and one single glazed door £849
Two windows and double glazed doors £819
Four windows and double glazed doors £899
Apex Roof Style
Two windows and one single glazed door £837
Four windows and one single glazed door £917
Two windows and double glazed doors £887
Four windows and double glazed doors £967
Summer House
9 x 7
(
2.7m x 2.1m )
Pent Roof Style
Two windows and one single glazed door £980
Four windows and one single glazed door £1,060
Two windows and double glazed doors £1,030
Four windows and double glazed doors £1,110
Apex Roof Style
Two windows and one single glazed door £1,059
Four windows and one single glazed door £1,139
Two windows and double glazed doors £1,109
Four windows and double glazed doors £1,189
Summer House
9 x 8
(
2.7m x 2.4m )
Pent Roof Style
Two windows and one single glazed door £1,020
Four windows and one single glazed door £1,100
Two windows and double glazed doors £1,070
Four windows and double glazed doors £1,150
Apex Roof Style
Two windows and one single glazed door £1,110
Four windows and one single glazed door £1,190
Two windows and double glazed doors £1,160
Four windows and double glazed doors £1,240
Summer House
10 x 4
(
3.0m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £839
Four windows and one single glazed door £919
Two windows and double glazed doors £889
Four windows and double glazed doors £969
Apex Roof Style
Two windows and one single glazed door £889
Four windows and one single glazed door £969
Two windows and double glazed doors £939
Four windows and double glazed doors £1,019
Summer House
10 x 5
(
3.0m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £859
Four windows and one single glazed door £939
Two windows and double glazed doors £909
Four windows and double glazed doors £989
Apex Roof Style
Two windows and one single glazed door £922
Four windows and one single glazed door £1,002
Two windows and double glazed doors £972
Four windows and double glazed doors £1,052
Summer House
10 x 6
(
3.0m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £879
Four windows and one single glazed door £959
Two windows and double glazed doors £929
Four windows and double glazed doors £1,009
Apex Roof Style
Two windows and one single glazed door £954
Four windows and one single glazed door £1,034
Two windows and double glazed doors £1,004
Four windows and double glazed doors £1,084
Summer House
10 x 7
(
3.0m x 2.1m )
Pent Roof Style
Two windows and one single glazed door £1,020
Four windows and one single glazed door £1,100
Two windows and double glazed doors £1,070
Four windows and double glazed doors £1,150
Apex Roof Style
Two windows and one single glazed door £1,108
Four windows and one single glazed door £1,188
Two windows and double glazed doors £1,158
Four windows and double glazed doors £1,238
Summer House
10 x 8
(
3.0m x 2.4m )
Pent Roof Style
Two windows and one single glazed door £1,050
Four windows and one single glazed door £1,130
Two windows and double glazed doors £1,100
Four windows and double glazed doors £1,180
Apex Roof Style
Two windows and one single glazed door £1,150
Four windows and one single glazed door £1,230
Two windows and double glazed doors £1,200
Four windows and double glazed doors £1,280
Summer House
12 x 4
(
3.6m x 1.2m )
Pent Roof Style
Two windows and one single glazed door £969
Four windows and one single glazed door £1,049
Two windows and double glazed doors £1,019
Four windows and double glazed doors £1,099
Apex Roof Style
Two windows and one single glazed door £1,029
Four windows and one single glazed door £1,109
Two windows and double glazed doors £1,079
Four windows and double glazed doors £1,159
Summer House
12 x 5
(
3.6m x 1.5m )
Pent Roof Style
Two windows and one single glazed door £989
Four windows and one single glazed door £1,069
Two windows and double glazed doors £1,039
Four windows and double glazed doors £1,119
Apex Roof Style
Two windows and one single glazed door £1,064
Four windows and one single glazed door £1,144
Two windows and double glazed doors £1,114
Four windows and double glazed doors £1,194
Summer House
12 x 6
(
3.6m x 1.8m )
Pent Roof Style
Two windows and one single glazed door £1,009
Four windows and one single glazed door £1,089
Two windows and double glazed doors £1,059
Four windows and double glazed doors £1,139
Apex Roof Style
Two windows and one single glazed door £1,099
Four windows and one single glazed door £1,179
Two windows and double glazed doors £1,149
Four windows and double glazed doors £1,229
Summer House
12 x 7
(
3.6m x 2.1m )
Pent Roof Style
Two windows and one single glazed door £1,180
Four windows and one single glazed door £1,260
Two windows and double glazed doors £1,230
Four windows and double glazed doors £1,310
Apex Roof Style
Two windows and one single glazed door £1,285
Four windows and one single glazed door £1,365
Two windows and double glazed doors £1,335
Four windows and double glazed doors £1,415
Summer House
12 x 8
(
3.6m x 2.4m )
Pent Roof Style
Two windows and one single glazed door £1,330
Four windows and one single glazed door £1,410
Two windows and double glazed doors £1,380
Four windows and double glazed doors £1,460
Apex Roof Style
Two windows and one single glazed door £1,450
Four windows and one single glazed door £1,530
Two windows and double glazed doors £1,500
Four windows and double glazed doors £1,580
Add extra windows – £40 each
Factory-Direct Summer Houses
Buy your Summer House directly from the manufacturer.
Pent or Apex roof styles
Single or double glazed doors
Two or four window options on selected sizes
4mm polycarbonate glazing
A wide range of standard sizes
If you are unsure which size or design would suit your garden, you are welcome to visit our factory and talk to the guys that make them before ordering.
Why Buy a Summer House from Harts?
Full tongue‑and‑groove 12–13mm cladding
Tongue‑and‑groove roof and floor
Anti‑rip polyester mineral roofing felt
Apex and Pent styles with multiple variations
Free professional assembly
Free factory‑applied basecoat
Window and door combinations to suit any garden
4mm Polycarbonate Windows
Our Summer Houses use 4mm polycarbonate glazing, providing a strong and practical window option for garden buildings.
Virtually unbreakable
High impact resistance
Excellent light transmission
Protection against harmful UV radiation
Weather-resistant
Recyclable material
The large glazed areas allow plenty of natural light into the Summer House and help create a bright, comfortable garden space.
We have been manufacturing timber garden buildings for many years and are happy to help you choose the right Summer House for your garden.
