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Building Improvement Costs for 2008

The following are ballpark estimates for repairs and/or improvements to a typical single-storey industrial or retail structure. The costs reflect the Southern Ontario area. Our experience has shown that actual quotations can vary by as much as 300%.

Naturally, the quality of workmanship and materials will influence cost. The complexity of the job, accessibility and current local economic conditions can also affect actual costs.

Roofing
Exterior
Structural
Electrical
Heating, Ventilation and Air Conditioning
Plumbing
Interior

Environmental

Roofing Estimated Cost
Strip and replace built up tar and gravel roof $7.00 - $9.00 per sq. ft.
Strip and install single ply roof membrane (low rise) $8.00 - $10.00 per sq. ft.
Strip and install single ply roof membrane (high rise) $15.00 - $20.00 per sq. ft.
Strip and reroof with asphalt shingles 3.00 - $4.00 per sq. ft.
Strip and reroof with cedar shingles $7.00 - $10.00 per sq. ft.
Reflash typical skylight (2 ft. by 4 ft.) $1,000 - $1,500
Rebuild single flue masonry chimney above roof line $250 - $350 per linear ft
of chimney height
Reroof with metal over built-up membrane, including tapered purlins $8.00 - $11.00 per sq. ft.
Install concrete tile roofing (assuming no structural reinforcement) $9.00 - $12.00 per sq. ft.



Exterior Estimated Cost
Resurface asphalt paving $1.75 - $2.50 per sq. ft.
Repoint exterior wall $6.00 - $9.00 per sq. ft.
Recaulk windows $2.00 - $3.00 per linear ft. of caulking.
Install insulated steel siding $9.00 - $11.00 per sq. ft.
Install precast concrete panels $25.00 - $35.00 per sq. ft.
Install shipping door cushions $1,000 each door
Replace 8'x10' wood sectional shipping door $1,400 - $1,800
Install 8' high chain link fencing $15.00 - $25.00 per linear ft.
Lay sod $0.75 - $1.50 per sq. ft.
Replace windows – aluminum framed, double glazed $25.00 - $50.00 per sq. ft.
Install interlocking brick walkway $6.00 - $8.00 per sq. ft.
Rebuild masonry retaining wall $30.00 - $50.00 per sq. ft.
Wet sandblast concrete block (to remove ink or marker) $2.00 per sq. ft.
Clean out catch basins in open parking lot $150 per catch basin



Structural
Estimated Cost
Replace corroded steel lintel (or shelf angle) supporting brick veneer $190 - $230 per linear ft.
Repair delamination of top side of conventional concrete slab (assuming only minor corrosion of reinforcing bar) $20.00 - $30.00 per sq. ft.
Repair spalling of conventional concrete slab soffit (assuming only minor corrosion of reinforcing bar) $30.00 - $50.00 per sq. ft.
Renew sealant at expansion joints (both vertical and horizontal joints from the interior) $30.00 - $40.00 per linear foot
Repair crack in concrete roof or wall slab by polyurethane injection $40.00 - $50.00 per linear ft. (Min. $800)
Application of a waterproofing membrane on concrete slabs (balcony slabs or suspended parking garage slabs) $3.00 - $5.00 per sq ft
Replace waterproofing membrane on roof of underground parking garage, covered by landscaping $17.00 - $20.00 per sq ft & up (depending on the amount of landscaping components on top of the garage roof)



Electrical
Estimated Cost
Replace circuit breaker panel $1,000 - $2,000 each
Install electrical outlets $100 - $200 each
Replace 200 amp disconnect switch $600 - $1,000
Replace 30 KVA transformer (dry type) $2,500 - $3,000
Install lighting in office area $3.50 - $5.50 per sq. ft.
Install lighting in warehouse area $2.50 - $3.50 per sq. ft.
Install 2 ft. by 4 ft. light fixtures $200 - $250 each
Replace conventional receptacle with aluminum-compatible type (CO/ALR) $25.00 - $35.00 each (Min. 25 outlets)



Heating, Ventelation and Air Conditioning Estimated Cost
Replace conventional package roof top
heating/cooling unit:
 
   ductwork already there $2,000 per ton
   ductwork required $2,500 per ton
Replace ceiling mounted, unit heaters
$1,800 - $3,000 each
Replace ceiling concealed water source heat pumps (1 - 2½ tons) $2,500 - $3,500 each
Replace air conditioning compressor $700 per ton
Replace heat exchanger for roof top unit $2,000 - $4,000
Clean duct system for roof top unit $0.20 per sq. ft. of building floor area
Replace 1,000,000 BTU/hr. hot water boiler $15,000 - $25,000
Replace roof top cooling tower $150 - $250 per ton
Replace centrifugal chiller $500 - $800 per ton (Min. 200 ton)
Retrofit centrifugal chiller from R11 to R123 refrigerant $180 per ton
Install pumps:  
   5 H.P. and less $800 - $1,600 each
   5 H.P. to 10 H.P. $3,000 - $5,000 each
Install roof mounted exhaust fans (<2,000 CFM) $1,500 - $2,500 per fan
Install diffuser (including branch duct and damper) $250 - $350
Balance air ductwork $0.20 - $0.25 per sq. ft. of building floor area
Install flexible ductwork $8.00 - $12.00 per linear ft.
Install electric baseboard heater $200 - $300 each
Replace thermostat $150 - $250
Replace radiator control valve with thermo actuator $200 - $300
Install individual bathroom exhaust fan $600 - $900
Install 1 inch diameter gas piping $12.00 - $18.00 per linear ft.
Plumbing Estimated Cost
Replace water closet $700 and up
Replace urinal $900 and up
Replace basin and faucet $700 and up
Replace ½ inch diameter copper piping $17.00 per ft. (Min. 100 linear ft.)
Replace ¾ inch diameter copper piping $22.00 per ft. (Min. 100 linear ft.)
Replace storm or sanitary pipes - above grade
$25.00 - $30.00 per ft. (Min. 100 linear ft.)
Replace storm or sanitary pipe-underground (inside building) $45.00 - $60.00 per ft. (Min. 100 linear ft.)
Replace storm or sanitary pipe-underground (outside the building) $60.00 - $80.00 per ft.(Min. 100 linear ft.)
Insulate supply water piping $1.50 - $2.50 per ft. (Min. 100 linear ft.)
Replace 40-gallon electric water heater $800 - $1,000

Interior Estimated Cost
Install 8 inch concrete block partition wall (no doors) $9.00 - $12.00 per sq. ft.
Install medium quality commercial broadloom $3.00 - $5.00 per sq. ft. and up
Install vinyl composite floor tiles (no preparation) $2.50 - $3.50 per sq. ft.
Install ceramic tile (no preparation)
$6.00 - $10.00 per sq. ft. & up
Install drywall partitions $5.00 per sq. ft. and up
Replace suspended ceiling tiles $1.70 - $3.00 per sq. ft and up.
Power sweep concrete floor of warehouse $0.07 per sq. ft.

Environmental Estimted Cost
Underground storage tank removal and minor soil cleanup) $5,000 - $10,000
PCB waste disposal:  
   45 gallon drum of light ballast $1,800
   45 gallon drum of PCB fluid $1,200
   45 gallon drum of PCB contaminated mineral oil $600
Hazardous waste disposal:  
   Oily water $0.20 per litre
   Waste oils $0.40 per litre
   Solvents/Inks $0.80 per litre
Asbestos removal:  
   4 inch pipe $25.00 per ft. (Min. 200 ft.)
   Elbows and T’s $80.00 each
Bore hole sampling (including laboratory testing) $1,200 per hole
Laboratory testing/soil sampling $150 - $300 per test
Asbestos/Lead samples (taking sample and having tested) $100 per sample
Phase I Environmental Site Assessment $1,800 - $8,800

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