Knob & Tube Wiring
Knob & Tube wiring

US CPSC - Electrical Safety
US Consumer Products Safety Commission (US CPSC) - Electrical Safety Publications

Foundations
CRACK-X
Foundation Repair

Foundation Repair Information
Foundation Repair Information

Residential Foundations
Foundation Types

BASE
Boston Association of Structural Engineers

HVAC
Air Conditioners
Air Conditioner operation.

Burnham
Manufacturer of boilers and burners used in oil and gas heating systems.

Heat Recovery Ventilators
Heat Recovery Ventilators

Massachusetts Oil Heat Council
Information on oil heating, equipment, retailers, and more.

US CPSC - Home Heating Equipment 
United States Consumer Protection Safety Commission (US CPSC) - Home Heating Equipment Publications

Lead Paint
Childhood Lead Poisoning Prevention Program
The Childhood Lead Poisoning Prevention Program (CLPPP) was established for the prevention, screening, diagnosis, and treatment of lead poisoning, including the elimination of sources of poisoning through research and educational, epidemiologic, and clinical activities as may be necessary.

Database of Lead Inspections
Lead in residential paint was banned in 1978, and due to the large quantity of pre-1978 homes in Massachusetts, you will find many properties in this database. You can look up the inspection history of a property by entering a street name or street name and number. This database will indicate whether a property has ever been inspected for lead, has had any lead hazards or has a letter of compliance.

Find A Lead Paint Inspector
Find a lead paint inspector, private risk assessor, or deleader. Provided by Massachusetts Office of Health and Human Services.

Mold / Indoor Air Quality
Facts Regarding Mold
Facts about mold.

Mold & Health
Potential effects of mold on your health.

Mold Resources
Mold Information from the EPA.

Plumbing
List of Title V Inspectors
MassDEP list of Soil Evaluators and Title 5 System Inspectors.

MA Approved Plumbing Products
Approved Plumbing Products System of the Massachusetts Board of Registration of Plumbers and Gas Fitters contains over 100,000 plumbing and gas products.

MA Plumber Regulations
Rules and Regulations Governing Plumbers and Gas Fitters 248 CMR 1.00 - 11.00

Title V and Septic Systems
Buying or Selling a property with a Septic System.

Roofing
Roof System Solution
Roofing Products and Common Problems.

Roof Vent Calculator
Most industry authorities and Local Building Codes recommend a minimum of 1/300th of horizontal roof area be provided in ventilation.
Roof Ventilation
Roof & Attic Ventilation: Healthier, longer-lasting roof performance

United States Consumer Product Safety Comission
U.S. Consumer Product Safety Commission
A comprehensive list of recalls for products sold in the U.S. . You can search by product type for a list safety recalls.