If the pilot light is out, re-lighting it can be done easily by the homeowner. Dirt and grime can cause problems with the pilot light, so cleaning the area around the ignitor may save the cost of having to call out an HVAC professional. A new ignitor can cost from $25 to $100, depending on the type of boiler.
Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.