The Short Answer
Choose aluminium when you want slim frames, large glass areas and big sliding doors. Choose UPVC when insulation, sound reduction and low maintenance matter most, for example on a busy road. Either can be fitted with double glazing, which improves insulation more than the frame material alone.
Aluminium Windows
- Strong and slim: aluminium is strong enough to carry large glass panels with thin frames, which gives a modern look and more daylight.
- Wide range of colours and finishes: powder-coated and wood-finish options match most facades.
- Good for large openings: sliding doors and big windows are usually the strong point of aluminium.
- Insulation: plain aluminium conducts heat, so insulation depends on the profile and the glass. Ask about thermal-break profiles and double glazing if comfort matters.
UPVC Windows
- Better insulation out of the box: UPVC frames conduct less heat and sound, which helps on busy roads and sun-facing walls.
- Low maintenance: UPVC does not corrode and does not need repainting.
- Thicker frames: frames are generally bulkier than aluminium, and large spans need internal reinforcement.
- Fewer finish options than aluminium in some cases, though wood-look finishes are available.
What Drives the Price of Windows
Whether you search for aluminium windows price in Pakistan or UPVC windows price in Pakistan, the same factors set the number:
- Frame profile: thickness, quality and brand of the aluminium or UPVC profile.
- Glass: single, double glazed, tinted, tempered or laminated glass all price differently.
- Size and opening type: sliding, casement and fixed windows differ, and larger windows cost more per square foot.
- Hardware: handles, locks, rollers and hinges decide how the window feels after years of use.
- Colour and finish: standard colours versus wood-finish or special coatings.
- Installation: sealing, fixing and the condition of the openings.
- Total quantity: a whole house is priced differently from a single window.
Window prices change with material costs, so we do not print a fixed rate here. We give today’s price in a written quote after measuring on site.
Which Is Better for a Lahore Home?
- Hot summers and AC use: double glazing in either frame cuts heat gain; UPVC has a natural edge in insulation.
- Busy road or noise: UPVC with double glazing is a common choice.
- Large lounge openings and sliding doors: aluminium usually gives the slimmest, strongest result.
- Modern facade and thin frames: aluminium.
- Dust: good seals and well-fitted frames matter more than the material.
Glass Options Explained
- Single glazing: the simplest and most affordable option, with the least insulation.
- Double glazing: two panes with a sealed gap that improves thermal and sound insulation, often the best upgrade for AC rooms and noisy roads.
- Tempered glass: stronger and safer, and breaks into small blunt pieces, which suits large panes and doors.
- Tinted or reflective glass: reduces glare and heat gain from strong sun.
- Laminated glass: holds together if broken and adds security and sound reduction.
Security, Dust and Noise
Good locks and well-fitted frames matter more for security than the frame material alone. Properly fitted seals reduce dust and draughts, and double glazing helps against traffic noise. Whichever frame you choose, ask how the windows are sealed and fixed to the wall, because a well-made window installed poorly will still leak air and dust.
Maintenance
Both materials need little upkeep compared with wood. Clean the frames with a mild cleaner, keep the tracks of sliding windows free of dust and grit, and lubricate hinges and rollers occasionally. UPVC does not need repainting; aluminium with a good powder coat generally stays presentable for a long time too.
Common Window Mistakes
- Choosing the frame by price only without checking the profile thickness and the hardware.
- Ignoring the glass, even though the glass often matters more than the frame for comfort.
- Placing large windows on the west side without any shading.
- Fixing window sizes late, after the walls and the openings are already built.
- Comparing a quote for single glazing with one for double glazing.
Get It Right at the Planning Stage
Window sizes and positions are fixed when the walls go up, so decide on them with your architect during planning, not after. If you are planning a new house, see our double story house design guide. We supply and fit both aluminium and UPVC windows and doors through our aluminium and UPVC service, and you can also see how windows work with the overall interior design.
Related Guides
Kitchen Cabinets: Wood vs MDF vs Aluminium · Interior Design in Pakistan · Double Story House Design in Pakistan · House construction in Lahore